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The ionisation potential of hydrogen is ...

The ionisation potential of hydrogen is 13.6 V. The energy required to remove an electron from the secor orbit of hydrogen is

A

` 3.4 eV`

B

` 6.8 eV`

C

`27.2 eV`

D

`54.4 eV`

Text Solution

Verified by Experts

`E _(a) = - ( 13.6)/(n ^(2)) V`
`therefore E _(2) =- 3.4 eV and E_(oo) =0therefore ` Required energ `E _(oo) - E _(2)= 3.4 eV`
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