Question

The correct ground state electronic configuration of chromium atom (Z = 24) is *
a) [Ar] 3d⁵ 4s¹
b) [Ar] 3d⁴ 4s²
c) [Ar] 3d⁶ 4s⁰
d) [Ar] 4s¹ 4p⁵
Q3. What would be the​

Answer 1

Answer:

Electronic configuration of Cr is [Ar]3d5 4s1, instead of the expected [Ar]3d4 4s2. This is so because half filled d orbitals have extra stability.

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Answer 2

Answer:

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CORRECT ✅ OPTION [ A ]