The minimum energy in electron volt required to strip off te... | Chemistry | SolveeIt | Solveeit

Today, August 18

Question

The minimum energy in electron volt required to strip off ten times ionized sodium atom (i.e. Z = 11) of its last electron is

A

13.6 MeV

B

$13.6\times11$ eV

C

$13.6\times11^2$ eV

D

$13.6\times11^3$ eV

Answer

$13.6\times11^2$ eV

Explanation

Solution

$E_n = \frac{ - 13.6 \, Z^2}{n^2}$ eV . Here Z = 11 , n = 1