Q. The ionisation energy of 10 times ionised sodium atom is
A) $13.6\ eV$
B) $13.6 \times 11\ eV$
C) $\frac{13.6}{11}eV$
D) $13.6 \times (11)^{2}eV$
Explanation
(d) $\left( E_{ion} \right)_{Na} = Z^{2}\left( E_{ion} \right)_{H} = (11)^{2}13.6\ eV$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.