Question

The energy of the electron in the hydrogen atom is given by the expression atom in the ground state can absorb is:

• A. 13.16eV
• B. 32.8 eV
• C. 65.6 eV
• D. 984 kJ

Answer 1

The correct option is A 13.16eV

Energy of an electron is given by,

$E_n=\frac{13.16Z}{n^2}eV$

Here, $Z$ is atomic mass number and $n$ is principal quantum number

For ground state of hydrogen atom $Z=1$ and $n=1$

$E_n=13.16eV$