Science Class 9 Structure of Atom

Asked by GIANSH GUPTA KHUNDKER · BIRLA BRAINIACS

Which of the following correctly represents the electronic configuration of Magnesium (Atomic Number = 12)?
A. 2, 8, 1
B. 2, 8, 2
C. 8, 2, 2
D. 2, 2, 8

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