P-Block Elements Ques 429
Question: Which element out of $ He, $ $ Ar, $ $ Kr, $ and $ Xe $ forms least number of compounds
[MP PMT 1995]
Options:
A) $ He $
B) $ Ar $
C) $ Kr $
D) $ Xe $
Show Answer
Answer:
Correct Answer: A
Solution:
It is because (1) Small atomic size (2) High Ionization energy (3) Absence of d-orbitals