Question

An element has atomic number 17 to which group and period closer it belong.​

Answer 1

2,8,7 is the electronic configuration of the element whose atomic number is 17. As it has 7 valence electrons. So Its belongs to 17th group and 3rd period.

Answer 2

Explanation:

2,8,7 is the electronic configuration of the element whose atomic number is 17. As it has 7 valence electrons. So Its belongs to 17th group and 3rd period.