Atomic Structure Question 83
Question: The hydride ions $ ({H^{-}}) $ are isoelectronic with [AFMC 1995; Bihar MEE 1997]
Options:
A) $ Li $
B) $ H{e^{+}} $
C) $ He $
D) $ Be $
Show Answer
Answer:
Correct Answer: C
Solution:
$ {H^{-}}=1s^{2} $ and $ H{e^{+}}=1s^{2}. $