32112018 For each of the following sets of atoms and/or ions, choose the species

Question

32112018 For each of the following sets of atoms and/or ions, choose the species that has a different confguration from the other species in the set. 19.-/1.2 points electron S2- has a different electron configuration than P3- and Cl. has a different electron configuration than S2-and C. than s2- and p3- (a) s2, p3-, ci CI has a different electron configuration than s2- and p3- (b) Ne, Na, F- Ne has a different electron configuration than Na and F. Na has a different electron configuration than Ne and F F- has a different electron configuration than Ne and Na. (c) Zr2+, Sr2,Rb Zr2+ has a different electron configuration than Sr2+ and Rb Sr2+ has a different electron configuration than Zr2+ and Rb+. Rb+ has a different electron configuration than Zr2+ and Sr2+. (d) lithium, hydride, helium Lithium has a different electron configuration than hydride and helium. Hydride has a different electron configuration than lithium and helium. Helium has a different electron configuration than lithium and hydride. (e) zirconium(II), niobium(III), molybdenum(VI) molybdenum(VI). Niobium(III) has a different electron configuration than zirconium(II) and Zirconium(II) has a different electron configuration than niobium(III) and molybdenum(VI). Molybdenum(VI) has a different electron configuration than zirconium(II) and niobium (III). (D V, iron(II), chromium V has a different electron configuration than iron(II) and chromium.

Explanation / Answer

a) Electron configuration of Cl :

Electron configuration of P3-:(phosphide ion)

P(15)= 1s^2 2s^2 2p^6 3s^2 3p^3

P^3- : 1s^2 2s^2 2p^6 3s^2 3p^6

Electron configuration of S2-: (sulfide ion)

S(16): 1s^2 2s^2 2p^6 3s^2 3p^4

S^2- : 1s^2 2s^2 2p^6 3s^2 3p^6

Electron configuration of Cl: (chlorine atom)

Cl(17) : 1s^2 2s^2 2p^6 3s^2 3p^5

Cl has a different configuration than P3- and S2-

b) Na(11) : 1s^2 2s^2 2p^6 3s^1

Ne(10): 1s^2 2s^2 2p^6 3s^2

F-(10): 1s^2 2s^2 2p^6 3s^2

Na has a different configuration than Ne and F-

c)Zr2+ (38) : 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^2    or [Kr] 4d^2

Sr2+(36) 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 5s^2 or [Kr]5s^2

Rb+ (37) : 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 or [Kr] 5s^1

Rb+ has a different configurtion than Zr2+ and Sr2+

d)Li(3) : 1s^2 2s^1

H-(2)=1s^2

He(2): 1s^2

Li has different configuration from H- and He

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