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Choose the correct option having all the elements with d 10 electronic configuration from the following :

1. 27 Co, 28 Ni, 26 Fe, 24 Cr
2. 46 Pd, 28 Ni, 26 Fe, 24 Cr
3. 29 Cu, 30 Zn, 48 Cd, 47 Ag
4. 28 Ni, 24 Cr, 26 Fe, 29 Cu

Correct answer: 29 Cu, 30 Zn, 48 Cd, 47 Ag

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