Question

elements with seven electron in the valance electrons are

Answer 1

Answer:

The family of elements having seven electrons in the valence shell is halogens, i.e., chlorine, fluorine, bromine, iodine, astatine.

Answer 2

Answer:

the elements in this family are florine,chlorine,bromine,iodine,and astatine. Halogens have 7valence electrons, which explains why they are the most active non - metels