Question

what is the valency of sodium oxide​

Answer 1

Electronic configuration of sodium(Na) is

1s2 2s2 2p6 3s1

Bcz it has 11 electrons.

And we know that no. Of electrons in outer shell are called valence electrons and same is the valency.

Here no. of electrons in outer orbital is 1 so the valency of sodium is 1.

Answer 2

Answer:

valancy of Nao is 1 because there is no any extra electron