Q. When an electron is removed from an atom, its energy

A) Increase
B) Decrease
C) Remains the same
D) None of these
Explanation

(a)
$\because$ During ionisation, energy is supplied to atom in order to take out electron from it. Energy of atom increases when an electron is removed from atom.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

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