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An orbit electron in the ground state of...

An orbit electron in the ground state of hydrogen has an angular momentum `L_(1)`, and an orbital electron in the first orbit in the ground state of lithium (dounle ionised positively) has an angular momentum `L_(2)`. Then :

A

`L_(1)=L_(2)`

B

`L_(1)=3L_(2)`

C

`L_(2)=3L_(1)`

D

`L_(2)=9L_(1)`

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