An excited atom has an electron or electrons which are not in the lowest energy state. Excited atoms are unstable energetically. The electrons eventually fall to a lower level. * is used to indicate an excited atom. For example: *Li 1s' 3p'. (The ground state for Li is 1s 2s'.) Write an excited state electron configuration for each. 11. Al 12. Ar 13. K 14. C

) The element whose atoms in the ground state have three half-filled orbitals isNa. Mg. Si. O. As. Al

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5. Down a group in the periodic table: Do you think the ionization energy of Lithium (Li) is larger or smaller than that of Sodium (Na)?A. Larger B. Smaller C. Same D. Don’t KnowWhat did you base your answer on?6. Across a row in the periodic table: Do you think the ionization energy of Lithium (Li) is larger or smaller than that of Neon (Ne)?A. Larger B. Smaller C. Same D. Don’t KnowWhat did you base your answer on?