# which set of quantum numbers (n,l,m_(1),m_(2) ) is possible for the outermost electron in a strontium atom inits gound state ?

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which set of quantum numbers (n,l,m_(1),m_(2) ) is possible for the outermost electron in a strontium atom inits gound state ?
A. ,5,0,0,-(1)/(2)
B. ,5,0,1,(1)/(2)
C. ,5,1,0,(1)/(2)
D. ,5,1,1,-(1)/(2)

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