Q. Compared with the alkaline earth metals, the alkali metals exhibit

A) Greater hardness
B) Smaller ionic radii
C) Lower ionisation energies
D) Highest boiling points
Explanation

(c)
Because of the larger size and smaller nuclear charge, alkali metals have low ionisation potential relative to alkaline earth metals

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.