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d and f BLOCK ELEMENTS
Question #38354
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What is the ground state electronic configuration of Copper (Cu, Z=29)?
A. [Ar] 3d⁹ 4s²
B. [Ar] 3d¹¹
C. [Ar] 3d⁸ 4s³
D. [Ar] 3d¹⁰ 4s¹
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