1.

Pd has exceptional outer electronic configuration as 4d^(10) 5 s^(0). It belongs to

Answer»

`4^(th)` period, group 11
`5^(th)` period, group 10
`6^(th)` period, group 9
`3^(rd)` period, group 16

Solution :The EXCEPTIONAL outer ELECTRONIC configuration of Pd suggests that, in principle shell its configuration should have been `4d^8 5s^2`. As such it lies in `5^(th)` period and group 10.


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