Question

What is the number of valence electron in: (i) Sodium ion (Na+) and Na (ii) Oxide ion (02.) and O​

Answer 1

Explanation:

In Na+ ion, there are only 10 electrons. The electronic configuration is 2 , 8. Therefore, the number of valence electrons in sodium ion is 8. In O2- ion, there will be 10 electrons, as it has gained two electrons.

Answer 2

Answer:

(i) The number of valence electrons in the sodium ion Na+

is eight.

(ii) The number of valence electrons in oxide ion o2-

is eight.

Explanation:

mark as brainliest