Question

If the ionization energy of hydrogen atom 13.6 eV, the energy required to excite it from ground state to the next higher state is nearly?

• A. 3.4 eV
• B. -10.2 eV
• C. -12.1 eV
• D. -1.5 eV

Answer 1

The correct option is B -10.2 eV

$I.F=13.69V$

$n=1$ to $n=2,\infty$

Now $n=1$ to $n=2$

$\Rightarrow 13.6\left(1\frac{-1}{4}\right)$

$=-10.29V$