Maximum number of electrons which can be filled in the third shell of an atom is:

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Solution

The correct option is B
18

Explanation:
The maximum number of electrons that can be filled in the energy shell is given by the formula 2n².
where n = number of shells
Given, n = 3
So, the maximum number of electrons in the third shell $= 2 {(3)}^{2} = 18 electrons$
Hence, the correct option is (B).

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Maximum number of electrons which can be filled in the third shell of an atom is:

The correct option is B 18Explanation:The maximum number of electrons that can be filled in the energy shell is given by the formula 2n2 .where n = number of shellsGiven, n = 3So, the maximum number of electrons in the third shell =2(3)2=18electronsHence, the correct option is (B).