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the electronic configuration of calcium ion


The electronic configuration of calcium ion  ( Ca2+)  is:

(1) 1s1, 2s2, 2p6, 3s2, 3p6, 4s2         

(2) 1s1, 2s2, sp6, 3s2, 3p6, 4s1                 

(3) 1s1, 2s2, 2p6, 3s2, 3p6, 3d2    

(4) 1s1, 2s2, sp6, 3s2, 3p6, 3d5     

(5) 1s1, 2s2, 2p6, 3s2, 3p6, 4s0

Ans:1s1, 2s2, 2p6, 3s2, 3p6, 4s0

 

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Chemistry: the electronic configuration of calcium ion
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