answersLogoWhite

0


Best Answer

Hydrogen has 1 valence electron, phosphorus has 5 valence electrons, and oxygen has 6 valence electrons. So, if you totaled all of the valence electrons in the ion HPO42- you'd get 1 + 5 + 6 X 4 + 2 = 32. However, you should realize that the term "valence electron" really only applies to individual atoms, not compounds. The only electrons one would concern themselves with in the HPO42- ion are the 2 that make it an ion.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

32

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many valence electrons are in the polyatomic ion HPO4 -2?
Write your answer...
Submit
Still have questions?
magnify glass
imp