Electron configuration The magnetic behavior of an atom or ion depends on its el

ID: 497726 • Letter: E

Question

Electron configuration

The magnetic behavior of an atom or ion depends on its electron configuration.

Part A

Select the correct electron configurations from the list below. You can refer to the periodic table for atomic numbers.

Check all that apply.

A) The electron configuration of Rb is [Kr]5s^04d^1.

B) The electron configuration of C is [He]2s^22p^2.

C) The electron configuration of S2 is [Ne]3s^23p^6.

D) The electron configuration of Fe is [Ar]4s^23d^6.

E) The electron configuration of Au+ is [Xe]4f^145d^96s^1.

Ans - A) for Rb electron configration is [Kr] 5s1 (1s22s22p63s23p63d104s24p65s1)

B) for C electron configration is [He] 2s22p2 ( 1s22s22p2)

C) for S-2 electron configration is [Ne] 3s2 3p6 (1s2 2s2 2p6 3s2 3p6)

D) for Fe electron configration is [Ar] 3d64s2 (1s22s22p63s23p63d64s2)

E) foe Au+ electron configration is Xe] 6s2 4f145d8

so According to the above correct configration only option B, C and D matches to the given configration, hence only B, C and D are correct

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