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Select the wrong statement about Li⁺² atom :

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Angular momentum of an electron in 3rd orbit is $\frac{3 h}{2 π}$

Energy of electron in 2nd excited state is $- 13.6 eV$

Speed of electron in 3rd orbit is $\frac{c}{137}$ where c is speed of light.

Kinetic energy of electron in 2nd excited state is double of the magnitude of the potential energy in that state.

answer is D.

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Detailed Solution

answer
According to the Bohr theory we know the relation between Potential energy and Kinetic energy as
$Kinetic energy = - \frac{Potential energy}{2}$

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