What are the four-quantum number of 19th electron of copper? – InterviewSolution

1.

What are the four-quantum number of 19th electron of copper?

Answer»

₂₉Cu = 2, 8, 18, 1

= 1s² , 2s²2p⁶ , 3s²3p⁶3d¹⁰ , 4s¹

19^th Electron of copper lies in 4s orbital.

So, n = 4, l= 0, m = 0, s = +1/2

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