Question 303: Atoms & Nuclei

Question

If $$13.6$$ $$eV$$ energy is required to ionize the hydrogen atom, then the energy required to remove an electron from $$n=2$$ is

Accepted Answer

KEY CONCEPT :
The energy of nth orbit of hydrogen is given by
$${E_n} = {{13.6} \over {{n^2}}}eV/$$ atom
For $$n=2,$$ $${E_n} = {{ - 13.6} \over 4} =  - 3.4eV$$
Therefore the energy required to  remove electron from
$$n = 2$$ is $$+3.4eV.$$

Answer

$$10.2$$ $$eV$$

Answer

$$0$$ $$eV$$

Answer

$$3.4$$ $$eV$$

Answer

$$6.8$$ $$eV.$$

Atoms & Nuclei

If $13.6 eV energy is required to ionize the hydrogen atom, then the energy required to remove an electron from n=2$ is

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