Question

Atomic number of beryllium is 4 and that of oxygen is 8 . write down their electronic configuration and state which is electropositive element and why ?​

Answer 1

beryllium is the electro positive element because as it lose 2 electron become stable ...... number of electron decreses and protons increase....

hope it is usefull...... thank u

Answer 2

Answer:

Explanation:

Atomic number of Beryllium = 4

Electronic configuration = (2, 2)

Atomic number of Oxygen = 8

Electronic configuration = (2, 6)

Valency of Beryllium is 2,

Valency of Oxygen is = 8 ‒ 6 = 2