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JEE Main levelNumerical answerDifficulty 2 of 3as207

The total number of $p$ -electrons (electrons with $l = 1$ ) in a ground-state zinc atom ( $Z = 30$ ) is

Numerical answer type, tolerance 0.1.

Answer: 12

Zn is

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10} 4 s^{2}

. The

p

electrons are in

2 p

(6) and

3 p

(6), so the total is 12.

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