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Chemistry
Which out of the following configurations is incorrect?
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Q. Which out of the following configurations is incorrect?
Structure of Atom
A
$1 s^2 \, 2 s^2 \, 2 p_x^2 \, 2 p_y^2 \,2 p_z^0$
B
$1 s^2 \,2 s^2 \, 2 p_x^1 \, 2 p_y^1$
C
$1 s^2 \,2 s^2 \,2 p_x^1 \,2 p_y^1 \,2 p_z^1$
D
$1 s^2 \, 2 s^2 \, 2 p^6 \,3 s^2 \,3 p^6 \,3 d^5$
Solution:
$1 s^2, 2 s^2, 2 p_x^1, 2 p_y^1, 2 p_z^1$ (Pauli's exclusion principle)