The periodic table is a tabular display of the chemical elements organized on the basis of their atomic numbers, electron configurations, and chemical properties. It could be part of the main body, but then the periodic table would be rather long and cumbersome. See the Americium (Am) [Rn] 7s2 5f7. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. . Lead is soft and malleable, and has a relatively low melting point. We have shown the list of elements Electron Configuration of the elements for which reliable data is available. Configuracin electrnica de los elementos 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p2: Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. If you continue to use this site we will assume that you are happy with it. Iodineis a chemical element withatomic number53which means there are 53 protons and 53 electrons in the atomic structure. Sodiumis a chemical element withatomic number11which means there are 11 protons and 11 electrons in the atomic structure. For example, carbon has nine possible integer oxidation states from 4 to +4. In 1952, indium use in semiconductor devices began. What element has electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d6? Writing Electron . A freshly exposed surface of pure copper has a reddish-orange color. Thechemical symbolfor Sodium isNa. It is the heaviest essential mineral nutrient. The electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). Correct answers: 1 question: Identify the following neutral elements by their condensed electron configurations. The electron configuration can be visualized as the core electrons, equivalent to thenoble gasof the preceding period, and the valence electrons (e.g. what connection type is known as "always on"? Indium is a post-transition metal that makes up 0.21 parts per million of the Earths crust. The cookie is used to store the user consent for the cookies in the category "Other. what element is xe 6s2 4f14 5d7. Electron Configuration of all the elements in the - SchoolMyKids What electron configuration is Xe 6s2 4f14 5d6? Because of its high chemical reactivity, barium is never found in nature as a free element. Oganesson. We use cookies to ensure that we give you the best experience on our website. platinum (Pt), chemical element, the best known and most widely used of the six platinum metals of Groups 8-10, Periods 5 and 6, of the periodic table. In the periodic table, potassium is one of the alkali metals. 117 Tneso 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p5. The element is helium. Enter a Melbet promo code and get a generous bonus, An Insight into Coupons and a Secret Bonus, Organic Hacks to Tweak Audio Recording for Videos Production, Bring Back Life to Your Graphic Images- Used Best Graphic Design Software, New Google Update and Future of Interstitial Ads. How do electron configurations affect properties and trends of a compound? Nickel belongs to the transition metals and is hard and ductile. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. how to reset dauntless account 2022; diane mercer possession; blade and sorcery quest apk The 6s and 6p electrons are in the outermost shell, and are therefore the valence electrons. Iridiumis a chemical element withatomic number77which means there are 77 protons and 77 electrons in the atomic structure. Neptunium metal is silvery and tarnishes when exposed to air. Osmium [Xe] 4f14 5d6 6s2. Nickel is a silvery-white lustrous metal with a slight golden tinge. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins. The electronic configuration is there to distract you: Z=54+2+14+10+2=82, and, therefore, the element is LEAD. Bismuthis a chemical element withatomic number83which means there are 83 protons and 83 electrons in the atomic structure. Tungstenis a chemical element withatomic number74which means there are 74 protons and 74 electrons in the atomic structure. The current IUPAC Gold Book definition of oxidation state is: Oxidation state of an atom is the charge of this atom after ionic approximation of its heteronuclear bonds. The element lead has the electron configuration [Xe] 4f14 5d10 6s2 6p2. Look in Add a comment | 1 Answer Active Oldest Votes. Thechemical symbolfor Magnesium isMg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. . Thechemical symbolfor Samarium isSm. For example, silicon has nine possible integer oxidation states from 4 to +4, but only -4, 0 and +4 are common oxidation states. Tabla de Elementos Qumicos # sm. Your element has two more electrons (and two more protons) than Xe. what element is xe 6s2 4f14 5d7. The element lead has the electron configuration [Xe] 4f14 5d10 6s2 6p2. Sodium is a soft, silvery-white, highly reactive metal. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity, behind only oxygen and fluorine. The electron configuration of V is [Ar] 3d3 4s2 and Cr is [Ar] 3d5 4s1, the electron in 4s subshell is transfered to 3d subshell for extra stability, stability by the half-filled 3d subshell. Thechemical symbolfor Praseodymium isPr. A B; Oxygen: 1s2 2s2 2p4: Fluorine: 1s2 2s2 2p5: Neon: 1s2 2s2 2p6: Sodium: . What element is Xe 6s2 4f14 5d7? brian kim, cpa clearvalue tax net worth . But its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. What element is 6s2? A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. Find an answer to your question Which element has the electron configuration [Xe] 6s2 4f14 5d10 6p2? >. Correct answers: 3 question: [Xe]6s2 4f10 [Xe]6s2 4f14 5d7 [Ne] 3s2 3p1 Whats the element name to each of them? Strontium (Sr) [Kr] 5s2. This cookie is set by GDPR Cookie Consent plugin. Its boiling point is the lowest among all the elements. Zirconium is widely used as a cladding for nuclear reactor fuels. Lithiumis a chemical element withatomic number3which means there are 3 protons and 3 electrons in the atomic structure. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. DOC Electron Configuration Worksheet - Moore Public Schools ( , element) () . o. Thechemical symbolfor Rhenium isRe. Thechemical symbolfor Gold isAu. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d10? Thechemical symbolfor Iridium isIr. Determine the total number of electrons to be represented. Thechemical symbolfor Zinc isZn. Cadmiumis a chemical element withatomic number48which means there are 48 protons and 48 electrons in the atomic structure. 1 Which element has the electron configuration Xe 6s2 4f14 5d6? The element is americium, a metal from the actinides. what element is xe 6s2 4f14 5d7. Home Flashcards element name and shorthand electrical config. Copperis a chemical element withatomic number29which means there are 29 protons and 29 electrons in the atomic structure. The 6s and 6p electrons are in the outermost shell, and are therefore 4f14 5d6 6s2 [Xe]. Possible oxidation states are +3,4. Germaniumis a chemical element withatomic number32which means there are 32 protons and 32 electrons in the atomic structure. Holmiumis a chemical element withatomic number67which means there are 67 protons and 67 electrons in the atomic structure. Thechemical symbolfor Actinium isAc. Hg [Xe]4f14 5d10 6s2 6p1. Xe is element 54. [Rnl 7s2 Ra Ir Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure.The chemical symbol for Iridium is Ir. Configuraciones electronicas. A noble gas core is the noble gas element symbol enclosed in brackets: [He], [Ne], [Ar], [Kr], [Xe], or [Rn]. 06/16/2022 . Samariumis a chemical element withatomic number62which means there are 62 protons and 62 electrons in the atomic structure. Thechemical symbolfor Lithium isLi. Lead is a heavy metal that is denser than most common materials. Po [Xe]4f14 5d10 6s2 6p5. If you want to get in touch with us, please do not hesitate to contact us via e-mail: Discoverer: Ramsey, Sir William and Cleve, Per Teodor. HNCO2007118 Radium (Ra) [Rn] 7s2. Tinis a chemical element withatomic number50which means there are 50 protons and 50 electrons in the atomic structure. Major advantage of lead shield is in its compactness due to its higher density. Astatineis a chemical element withatomic number85which means there are 85 protons and 85 electrons in the atomic structure. Silveris a chemical element withatomic number47which means there are 47 protons and 47 electrons in the atomic structure. It's not barium. This is our answer, so the element act should be arsenic. Ernest Z. Barium has the noble gas configuration [Xe]6s. Thechemical symbolfor Palladium isPd. A B; hydrogen: 1s1: helium: 1s2: lithium: 1s2 2s1: boron: 1s2 2s2 2p1: carbon: 1s2 2s2 2p2: nitrogen: 1s2 2s2 2p3: fluorine: 1s2 2s2 2p5: neon: 1s2 2s2 2p6: sodium: . 2) How many valence electrons in a species with one Cl, two O, and one unit negative charge a. An element with the electron configuration [Xe]4f 145d 76s 2 is: A an alkaline earth element B a transition element C an inert gas D a rare earth Medium Solution Verified by Toppr Correct option is B) An element with the electron configuration [Xe]4f 145d 76s 2 is a transition element because valence electron lies in d orbital. Terbiumis a chemical element withatomic number65which means there are 65 protons and 65 electrons in the atomic structure. It is occasionally found in native form as elemental crystals. Thechemical symbolfor Promethium isPm. Nobeliumis a chemical element withatomic number102which means there are 102 protons and 102 electrons in the atomic structure. What does element number 74 electron configuration end in? Mercury is a heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure. Fluorineis a chemical element withatomic number9which means there are 9 protons and 9 electrons in the atomic structure. Thechemical symbolfor Radium isRa. [Xe] 6s2 4f14 5d3: Ta [Xe] 6s2 4f14 5d10: Hg [Kr] 5s2 4d3: Nb [Ne] 3s2 3p1: Al [Rn] 7s1: Fr: This activity was created by a Quia Web subscriber. Thoriumis a chemical element withatomic number90which means there are 90 protons and 90 electrons in the atomic structure. We add the proceeding electrons, which is now a total of 82. Similarly, thep blockare the right-most six columns of the periodic table, thed blockis the middle 10 columns of the periodic table, while thef blockis the 14-column section that is normally depicted as detached from the main body of the periodic table. what element is xe 6s2 4f14 5d7. Titanium can be used in surface condensers. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252. Complete the electron configurations for all elements in the table provided. what element is [xe] 6s24f145d6 - ASE The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Thechemical symbolfor Cobalt isCo. Cobalt is found in the Earths crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. Analytical cookies are used to understand how visitors interact with the website. Calculate the number of electrons or protons in the given configuration in a simple way to get this answer. What are some examples of electron configurations. Lawrencium is the final member of the actinide series. Promethium (Pm) is a Lanthanide element with the atomic number 61. Capisce? These cookies ensure basic functionalities and security features of the website, anonymously. To work backwards and find the element with a given configuration, you first find the noble gas in the Periodic Table. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack. Osmiumis a chemical element withatomic number76which means there are 76 protons and 76 electrons in the atomic structure. Thechemical symbolfor Oxygen isO. Exceptions in period 6 element z electron configuration noble gas configuration iridium 77 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10 5s2 5p6 6s2 4f14 5d7 xe 6s2 4f14. At [Xe]4f14 5d10 6s2 6p6. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Question: what is the name of the element in the ground state with the electron configuration of [Xe] 6s2 4f14 5d7? Thechemical symbolfor Californium isCf. Feb 18, 2015 at 4:22. 2) You may not distribute or commercially exploit the content, especially on another website. How could this be?" I see some good answers that are chemistry answers. Knowledge of theelectron configurationof different atoms is useful in understanding the structure of the periodic table of elements. The element tungsten (symbol W, The element is in Period 4 and Group 2. Rn. Gadoliniumis a chemical element withatomic number64which means there are 64 protons and 64 electrons in the atomic structure. Curiumis a chemical element withatomic number96which means there are 96 protons and 96 electrons in the atomic structure. electrnica bloque 20C 1atm atmico oxidacin 1 H Hidrgeno 1, s 1 gas 1.00794 1 1s1 2 He Helio 1, s 18 gas 4.002602 1s2 3 Li Litio 2, s 1 slido 6.941 1 1s2 2s1 4 Be Berilio 2, s 18 slido 9.012182 2 1s2 2s2 5 B Boro 2, p 13 slido 10.811 3 1s2 2s2 2p1 6 C Carbono 2, p 14 . (Enter the chemical symbol or name of the element.) Chromium is a steely-grey, lustrous, hard and brittle metal4 which takes a high polish, resists tarnishing, and has a high melting point. What does it mean that the Bible was divinely inspired? This website uses cookies to improve your experience while you navigate through the website. Level 15 - Period 6: configuration - Periodic Table: electron - Memrise Ir [Xe]4f14 5d9 6s1. Chemically, indium is similar to gallium and thallium. The element with this atomic number is lead, Pb. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. The element lead has the electron configuration [Xe] 4f14 5d10 6s2 6p2. Under standard conditions, it is the lightest metal and the lightest solid element. June 17, 2022 . [Rn]7s 2 5f 14 6d 10 7p 6 [note] Notes on the Electron Configuration of particular elements: Dubnium: Value is a guess based on periodic table trend. Flashcards. (The average of 0-9 would be 4.) What is the noble gas configuration for radium? - Helping QnA [Ne] 3s2 3p1 3. ; 4 Which element has the electron configuration Kr 5s2 4d10 5p3? Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Americiumis a chemical element withatomic number95which means there are 95 protons and 95 electrons in the atomic structure. Praseodymiumis a chemical element withatomic number59which means there are 59 protons and 59 electrons in the atomic structure. It is a soft, silvery-white alkali metal. Krypton is a member of group 18 (noble gases) elements. Our Website follows all legal requirements to protect your privacy. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan Jos and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. Discoverer: Priestley, Joseph and Scheele, Carl Wilhelm, Discoverer: Ramsay, William and Travers, Morris, Discoverer: Ramsay, Sir William and Strutt, John (Lord Rayleigh), Discoverer: Del Rio, Andrs Manuel (1801) and Sefstrm, Nils Gabriel (1830), Discoverer: Lecoq de Boisbaudran, Paul-mile, Discoverer: Ramsay, Sir William and Travers, Morris, Discoverer: Bunsen, Robert Wilhelm and Kirchhoff, Gustav Robert, Discoverer: Perrier, Carlo and Segr, Emilio, Discoverer: Reich, Ferdinand and Richter, Hieronymus, Discoverer: Mller von Reichenstein, Franz Joseph, Discoverer: Ramsay, William and Travers, Morris William, Discoverer: Kirchhoff, Gustav and Bunsen, Robert. Europium is one of the least abundant elements in the universe. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. Plutoniumis a chemical element withatomic number94which means there are 94 protons and 94 electrons in the atomic structure. From the periodic table, Xe has an atomic number of 54. element name and shorthand electrical config. Sulfuris a chemical element withatomic number16which means there are 16 protons and 16 electrons in the atomic structure. Necessary cookies are absolutely essential for the website to function properly. Caesium has physical and chemical properties similar to those of rubidium and potassium. Flashcards. S o here the total number of electron is 26 . Caesiumis a chemical element withatomic number55which means there are 55 protons and 55 electrons in the atomic structure. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. It is even less abundant than the so-called rare earths. Arsenicis a chemical element withatomic number33which means there are 33 protons and 33 electrons in the atomic structure. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. [xe] 6s2 4f4 is which elements noble gas configuration. Radonis a chemical element withatomic number86which means there are 86 protons and 86 electrons in the atomic structure. Ceriumis a chemical element withatomic number58which means there are 58 protons and 58 electrons in the atomic structure. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Thulium is an easily workable metal with a bright silvery-gray luster. The expected electron configuration for gold is is [Xe] 6s2 4f14 5d9 [Ne] 3s2 3p1 3. Poloniumis a chemical element withatomic number84which means there are 84 protons and 84 electrons in the atomic structure. Copper. The cookie is used to store the user consent for the cookies in the category "Analytics". As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. [Ar] 3d10 4s2 4p2. is a rare earth element with a metallic silver luster. Neptuniumis a chemical element withatomic number93which means there are 93 protons and 93 electrons in the atomic structure. The element of this atomic number is lead, Pb. The information contained in this website is for general information purposes only. Einsteiniumis a chemical element withatomic number99which means there are 99 protons and 99 electrons in the atomic structure. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Thechemical symbolfor Zirconium isZr. It is by mass the most common element on Earth, forming much of Earths outer and inner core. Obtn informacin detallada sobre qumica y los elementos. Ernest Z. Barium has the noble gas configuration [Xe]6s. what element is xe 6s2 4f14 5d7 - theintentionalentrepreneur.com Discoverer: McMillan, Edwin M. and Abelson, Philip H. Discoverer: Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, Arthur C. Wohl, Discoverer: Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso, Discoverer: Glenn T. Seaborg, Ralph A. James, Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr., Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Bernard G. Harvey, Gregory R. Choppin, Albert Ghiorso, Discoverer: Albert Ghiorso, Glenn T. Seaborg, Torbrn Sikkeland, John R. Walton, Discoverer: Albert Ghiorso, Torbjrn Sikkeland, Almon E. Larsh, Robert M. Latimer, Copyright 2023 Periodic Table | All Rights Reserved |. The element with the atomic number 17 is chlorine. Yttriumis a chemical element withatomic number39which means there are 39 protons and 39 electrons in the atomic structure. How To write an electron configuration. Cs (Xenon) has the same electron configuration as Xe. We have also distinguish between the possible and common oxidation states of every element. [Kr] 5s2 4d10 5p3. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. However, you may visit "Cookie Settings" to provide a controlled consent. what element is xe 6s2 4f14 5d9 - ASE Thechemical symbolfor Chlorine isCl. The metal is found in the Earths crust in the pure, free elemental form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. This formula says that lead has all the electrons of xenon as well as the electrons listed after [Xe]. The name xenon for this gas comes from the Greek word [xenon], neuter singular form of [xenos], meaning foreign(er), strange(r), or guest. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities. By convention, they are written last in noble gas configuration. element names in red are gases at room temperature element names in black are solids at room temperature Periodic Table of the Elements [Xe]6s 24f145d5 [Xe]6s24f 145d6 [Xe]6s2 5d7 [Xe]6s14f145d9 [Xe]6s14f145d10 [Xe]6s24f145d10 4f145d106p1 3 2 14 (i) [Kr] 5s1 4d10 (ii) [Xe] 6s2 4f14 5d7 (iii) [Ar] 4s2 3d10 4p4 (iv) [Kr] 5s1 4d4 (v) [Xe] 6s1 4f14 5d10 (vi) [Kr] 5s2 4d10 5p4 (b) Based on the electron configurations in part (a), which of the identified Browse. In the periodic table, the elements are listed in order of increasing atomic number Z. Thulium is the thirteenth and third-last element in the lanthanide series. Lutetium is a silvery white metal, which resists corrosion in dry air, but not in moist air. Uranium is a silvery-white metal in the actinide series of the periodic table. A magnesium atom has 12 electrons, which means it has 12 electrons. Thechemical symbolfor Europium isEu. 0. You Are Here: will my player transfer to 2k22 next gen texas roadhouse call ahead seating rules what element is xe 6s2 4f14 5d7. Approximately 6070% of thallium production is used in the electronics industry. Germanium. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. Thechemical symbolfor Rhodium isRh. element name and shorthand electrical config. Zinc. 76 Os Osmium. Thechemical symbolfor Iodine isI. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. Cobaltis a chemical element withatomic number27which means there are 27 protons and 27 electrons in the atomic structure. what element is xe 6s2 4f14 5d7 - alshamifortrading.com What element is xe 6s2 4f14 5d6. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. Fritzsche, S., C. Z. Dong, F. Koike, and A. Uvarov. Tellurium is far more common in the universe as a whole than on Earth. Home Flashcards element name and shorthand electrical config. Therefore, the atom with this configuration must be in the p block of the sixth period of the periodic table, which does indeed hold lead. Iridium - Electron Configuration and Oxidation States - Ir - Periodic Table Thuliumis a chemical element withatomic number69which means there are 69 protons and 69 electrons in the atomic structure. It suggests that the 6s is filled before the 4f or the 5d. Thechemical symbolfor Nitrogen isN. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earths atmosphere. Illustrate with a box diagram. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. [Xe] 4f14 5d7 6s2. It is the fourth most common element in the Earths crust. Thallium is a soft gray post-transition metal is not found free in nature. antimony. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Strontium (Sr) [Kr] 5s2. Thechemical properties of the atomare determined by the number of protons, in fact, by number andarrangement of electrons. Memrise Blog Engineering Blog Press. Cerium is the element that has the electron configuration of Xe 6s2 5d1 4f1. antimony atom Bromineis a chemical element withatomic number35which means there are 35 protons and 35 electrons in the atomic structure. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Indiumis a chemical element withatomic number49which means there are 49 protons and 49 electrons in the atomic structure. Alternatively, it may be easier to look at the listed subshells and determine which one is incomplete.

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