An element \(Y\) has the electronic configuration of \(1 s ^{2} 2 s ^{2} 2 p -\) \(63 s ^{2} 3 p ^{3} .\)

A. \(Y\) is a period III element  
B. Y contains three electrons in the outer shell
C. \(Y\) is a transition metal
D. \(Y\) can engage in bonding with the \(s\) and \(p\) orbitals

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Correct Answer: A