Q. The first ionisation potential (eV) of Be and B respectively are
A) 8.29 eV, 8.29 eV
B) 8.29 eV, 9.32 eV
C) 9.32 eV, 9.32 eV
D) 9.32 eV, 8.29 eV
Explanation
(d)
First IP of Be > B because of stable $ns^{2}$ configuration
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.