Question

an oxide ion has -2 change because

Answer 1

Explanation:

because valency of oxygen is -2

Answer 2

Answer:It has the same amount of positive protons and negative electrons. When it gets that extra electron, it becomes a negative ion, with a charge of minus 1. ... When it picks up two electrons, it gets a charge of minus two. The ion is called an oxide ion.

pls mark it has brainliest