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For the ground state, the electron in th...

For the ground state, the electron in the `H`- atom has an angular momentum=L, according to the simple Bohr model. Angular momentum is a vector and hence there will be infinitely many orbits with the factor pointing in all possible directions, In actuality this is not true,

A

because Bohr model gives incorrect values of angular momentum

B

because only one of these would have a minimum energy

C

angular momentum must be in the direction of spin of electron

D

because electrons go around only in horizontal orbits

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