Atomic Structure Question 77

Question: Isoelectronic species are [EAMCET 1989]

Options:

A) $ {K^{+}},,C{l^{-}} $

B) $ N{a^{+}},,C{l^{-}} $

C) $ Na,,Ar $

D) $ N{a^{+}},,Ar $

Show Answer

Answer:

Correct Answer: A

Solution:

$ {K^{+}}=,1s^{2},2s^{2}2p^{6}3s^{2}3p^{6} $

$ C{l^{-}}=,1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}. $



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