Teaching UP TGT Mock Test Series 2025 General Science Chemistry Periodic Table

Electronic configuration of copper [Z = 29] is:

1

[Ar] 3d⁹4s²

2

[Ar] 3d⁹4s¹4p¹

3

[Ar] 3d¹⁰4s¹

4

[Ar] 3d⁸4s²4p¹

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