Question

identify /zero velency group(1,2,17,18)​

Answer 1

PLEASE GIVE ME A BRANLIAST ANSWER AND FOLLOW ME

it is 18

Answer 2

Answer:

Groups are numbered 1–18 from left to right. The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.

Explanation:

pllz like and mark as brainlist