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d and f BLOCK ELEMENTS
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Question
What is the ground state electronic configuration of Chromium (Cr, Z=24)?
A. [Ar] 3d⁴ 4s²
B. [Ar] 3d⁶
C. [Ar] 3d³ 4s³
D. [Ar] 3d⁵ 4s¹
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