The correct ground state electronic configuration of chromium atom (Z = 24) is

Chemistry · JEE Main · NTA Exams — Atomic Structure

1. [Ar] 3d⁵ 4s¹
2. [Ar] 3d⁴ 4s²
3. [Ar] 3d⁶ 4s⁰
4. [Ar] 4s¹ 4p⁵

Answer

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

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