1.

Find Z_(eff) (using Slater's Rule) on 3d electron of Cu(29)

Answer»

8.3
6.85
7.85
None of these

Solution :`Cu(29)=(1S^(2))(2s^(2)2p^(6))(3s^(2)3p^(6))(4s^(1))(3D^(10))`
`sigma=9xx0.35+18xx1`
`Z_(EFF)=Z-sigma=29-9xx0.35-18`
`Z_(eff)=11-3.15=7.85`


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