State where in the periodic table these elements appear: elements with the valence-shell electron configuration ns2np5

Answer : This element belongs to the member of halogen group(group 17).

Explanation :

The valence-shell electronic configuration is

in this electronic configuration we see that there are 7 valence electrons in the element.

In the periodic table, Halogen is the group which has 7 valence electrons.

The element in halogen group are Florine, chlorine, bromine, iodine and astatine.

Dark shaded region is the halogen group(group 17)

The image of periodic table is shown below.

stupid i wont let you get a chance

explanation:

1 a

2 d

3 a

4 c

explanation: