A Level Chemistry MCQs – Certification Test 251

Electronic Configurations MCQ (Question 251) – App & e-Book Download

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MCQ: 251

The electronic configuration of chromium is

[Ar]2d⁵,4s¹
[Ar]2d⁴,4s²
[Ar]2d⁵,4s²
[Ar]2d⁴,4s¹

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