Q. The correct electronic configuration of Cr (Z = 24) is:

Cr (Z = 24) का सही इलेक्ट्रॉनिक विन्यास है:

[Ar]4s²3d⁴

[Ar]4s¹3d⁵

[Ar]3d⁶
[Ar]3डी⁶

[Ar]4s²3d³

Chromium is an exception to the Aufbau principle to achieve a more stable half-filled d-subshell.
Instead of [Ar] 4s² 3d⁴, it prefers [Ar] 4s¹ 3d⁵.

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