Question

find the number of valence electrons in the following atoms using the periodic table (a) Boron (b) Neon (c) Rubidium (d) Barium (e) Arsenic​

Answer 1

Explanation:

(a)v.e. of boron is 1

(b)v.e of neon is 8

(c)v.e of Rubhidium is 9

(d)v.e of Barium is 28