Question

the atomic number of beryllium is 4 while the oxygen is it write down the electronic configuration of 2 and reduced their valency from the same

Answer 1

atomic number=8
electronic configuration= 2,6

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