(A) The energy of an electron in the $ n^{\text{th}} $ orbit of a hydrogen atom is given by the formula: $ E_n = \frac{-13.6 \ eV}{n^2} $. For the thi

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(A) The energy of an electron in the $ n^{\text{th}} $ orbit of a hydrogen atom is given by the formula: $ E_n = \frac{-13.6 \ eV}{n^2} $. For the third orbit,we substitute $ n = 3 $ into the equation: $ E_3 = \frac{-13.6}{3^2} = \frac{-13.6}{9} $. Calculating this,we get $ E_3 \approx -1.51 \ eV $. Thus,the energy of the electron in the third orbit is $ -1.51 \ eV $.

Class 12 Physics Atoms Electron Energy and Electron Energy Levels in Hydrogen Atom

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What is the energy of the electron revolving in the third orbit expressed in $ eV $ (in $eV$)?

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A
$-1.51$
B
$-3.4$
C
$-13.6$
D
$-0.85$

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Electron Energy and Electron Energy Levels in Hydrogen Atom

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What is the energy of the electron revolving in the third orbit expressed in $ eV $ (in $eV$)?

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