An element with electronic configuration of shall belong to
4th period, group 10
5th period, group 10
5th period, group 12
4th period, group 12
The element is Palladium (Pd). It is member of d-block (4d series i.e., 5th period) and It
has 10 electrons filled in after noble gas configuration which indicates it belongs to 10th
group.
Hence option 2 is correct.