Question

State the group and the period, of the element having three shells with three valance elections in the valance shell.

PLEASE ANSWER IT IS VERY URGENT​

Answer 1

The element having three shells with three electrons in valence shell belong to 13th group and 3rd period.

Answer 2

Answer:

The last electron is entering p-sub-shell. Thus, it belongs to p-block. The group number for this element = Number of electrons + 10 = 3 + 10 = 13. Thus, this belongs to Group 13