Atomic Structure Question 260

Question: $ Fe $ (atomic number = 26) atom has the electronic arrangement [NCERT 1974; MNR 1980]

Options:

A) 2, 8, 8, 8

B) 2, 8, 16

C) 2, 8,14, 2

D) 2, 8, 12, 4

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Answer:

Correct Answer: C

Solution:

$ 1s^{2}2s^{2}2p^{6},3s^{2}3p^{6},4s^{2}3d^{6}=2,,8,,14,,2 $ .



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