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Question

What is the number of electrons that can accommodate in K shell in case of Lithium?

A
2
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B
3
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C
4
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D
1
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Solution

The correct option is A 2
The atomic number of lithium (Li) is 3. The maximum number of electrons that can be accommodated in any given shell is 2n2 (n= shell number. So for K, shell number is 1).

Therefore, number of electrons in K shell = 2×12=2


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