SATHEE: Atomic Structure Question 99

Atomic Structure Question 99

Question: Which of the following is not isoelectronic

Options:

A) $N a^{+}$

B) $M g^{2 +}$

C) $O^{2 -}$

D) $C l^{-}$

Show Answer

Answer:

Correct Answer: D

Solution:

$N a^{+}$ $= 1 s^{2}, 2 s^{2}, 2 p^{6}$

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

$O^{2 -}$ $= 1 s^{2}, 2 s^{2}, 2 p^{6}$

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

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Atomic Structure Question 99

Question: Which of the following is not isoelectronic

Options:

Answer:

Solution:

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