Total number of electrons in “Cu” atom having m_l = 0 - Vidyadip

MCQ

Total number of electrons in $“Cu”$ atom having $m_l = 0$

A
$9$
✓
$13$
C
$10$
D
$6$

✓

Answer

Correct option: B.

$13$

b
Electronic configuration of $Cu(29) = 1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^6\ 4s^1\ 3d^{10}$

$\therefore m_l = 0$ will be $= 2 + 2 + 2 + 2 + 2 + 1 + 2 = 13$

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