The number of maximum electrons in N Shell is

The number of maximum electrons in N Shell is

2
8
18
32
This question was previously asked in
UPSC NDA-2 – 2020
According to the rules governing electron shells, the maximum number of electrons in the N shell (n=4) is 32.
– Electron shells are designated by principal quantum numbers (n), starting from n=1 for the innermost shell (K shell).
– The formula for the maximum number of electrons that can occupy a shell with principal quantum number ‘n’ is 2n².
– For the N shell, n=4.
– Applying the formula 2n² for n=4: Maximum electrons = 2 * (4)² = 2 * 16 = 32.
– The distribution of electrons in shells follows specific rules, filling the lower energy shells first, but the maximum capacity is given by 2n².
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