Explain why Fe is a transitioin metal but Na is not ? – InterviewSolution

1.	Explain why Fe is a transitioin metal but Na is not ?
Answer» Solution :Fe contains incompletely filled 3D subshell `( 3d^(6) 4s^(2))`. Hence, it is a d-block ELEMENT, i.e., a TRANSITION element. Na has no d-subshell. LAST electron in it enters 3s orbital `( 1s^(2) 2s^(2) 2P^(6) 3s^(1))`. Hence, it belongs to s-block.

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