NCERT Exercise 18 - Structure of the Atom

Question: Which one of the following is a correct electronic configuration of sodium? (a) 2,8 (b) 8,2,1 (c) 2,1,8 (d) 2,8,1

Answer: (d) 2, 8, 1

Full step-by-step NCERT solution with diagrams on Something by Zero.

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