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Which one of the following is correct electronic configuration of sodium.  (A) 2, 8 

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Which one of the following is correct electronic configuration of sodium. 

(A) 2, 8 

(B) 8, 2, 1 

(C) 2, 1, 8 

(D) 2, 8, 1

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(D) 2, 8, 1

Electronic configuration of Na is 2, 8, 1 as its atomic number is 11

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The electronic configuration of sodium is  (A) 2, 8  (B) 8, 2, 1 
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