The correct ground state electronic configuration of chromium atom is (1989)

Chemistry · JEE Advanced · NTA Exams — Atomic Structure

1. [Ar] 3d⁵ 4s¹
2. [Ar] 3d⁴ 4s²
3. [Ar] 3d⁶ 4s⁰
4. [Ar] 4d⁵ 4s¹

Answer

(A) [Ar] 3d 5 4s 1

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