Question

Answer the following questions

1. The atomic number of beryllium is 4 while that of oxygen is 8. Write down the electronic configuration
of the two and deduce their valency from the same.​

Answer 1

Your answer is here.

ELECTRONIC CONFIGURATION-

Be- 2,2

O2 - 2,6

VALENCY-

Be- 2+

O- 2-

Hope this helps u out.

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