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  • What is the electronic configuration of calcium ion Option: 1 <img alt="2,8"

What is the electronic configuration of calcium ion (Ca^{2+})

Option: 1

2,8


Option: 2

2,8,2


Option: 3

2,8,4


Option: 4

2,8,8


Answers (1)

The atomic number of calcium is 20 so its electronic configuration is 2,8,8,2 and so has 2 electrons in the outermost shell.

Therefore to form calcium ion (Ca^{2+})
Calcium will lose 2 electrons and its configuration becomes 2,8,8..
Hence option number (d) is correct

Posted by

Ramraj Saini

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