For a one-electron atom, the set of allo...

For a one-electron atom, the set of allowed quantum number is -

A

`n=1,l=0,m_(l)=0,m_(s)=+1//2`

B

`n=1,l=1,m_(l)=0,m_(s)=+1//2`

C

`n=1,l=0,m_(l)=-1,m_(s)=-1//2`

D

`n=1,l=1,m_(l)=1,m_(s)=-1//2`

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The correct Answer is:

A

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