Q. The noble gas which forms interstitial compounds is
A) Helium
B) Argon
C) Neon
D) Xenon
Explanation
(a)
Only $He$ forms interstitial compounds since, the atomic size of $He$ is smallest and matches the size of the interstices available is the lattice of most of the heavy metals
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.