He 1 s he 1 s 2 1 s 2 s 2 p 3 s 3 p 4 s 3 d 4 p 5 s 4

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Part BUse the orbital-filling diagram to show the electron configuration of iron, Be sure to arrange the subshells in order of energy, with the lowest-energy subshell at the bottom and the highest-energy subshell at the top.Use the buttons at the top of the tool to add sublevels. Click within an orbital to add electrons.Hint 1. Determine the number of electrons in a neutral iron atomHow many electrons does a neutral iron atom contain?Express your answer numerically as an integer.Hint 1. How to determine the number of electronsIn a neutral atom, the number of electrons equals the number of protons. Use the periodic tableto determine the number of protons in an atom..
.Part CWhich neutral atom has the following electron configuration: Enter the chemical symbol for the element.Hint 1. Determine the number of electrons shown in the electron configurationHow many electrons are shown in the following electron configuration: Express your answer numerically as an integer.22334345s2s2p6s2p6s2d10p6s2122334345s2s2p6s2p6s2d10p6s2??
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Part AArrange the following elements in order of decreasing atomic size.Rank the atoms from the largest to smallest. To rank items as equivalent, overlap them.Hint 1. What determines atomic sizeAn atom's size is determined by how far the outermost electrons are from the nucleus. The size of an atom is affected by the size of an atom's orbitalsas well as by the positive pull of an atom's protons.Hint 2. Identify the periodic trends of atomic size on the periodic tableComplete each statement about the general trends in atomic size on the periodic table.Drag each item to the appropriate bin.Hint 1. The definitions of groups and periodsIn the periodic table, groupsoccur in vertical columns, while periodsoccur in horizontal rows.ANSWER:Correct
CorrectPart BArrange the following elements in order of decreasing ionization energy.Rank from highest to lowest ionization energy. To rank items as equivalent, overlap them.Hint 1. The definition of ionization energyThe ionization energyof an atom is the energy required to remove an electron from the atom in the gaseous state.

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