Question

consider the compound, tio₂. what is the charge of an oxide ion? +2 -4 +4 -2

Explanation:

Oxide ion is \(O^{2 -}\). The charge of oxide ion is determined by its electron gain. Oxygen (O) has 6 valence electrons and gains 2 electrons to achieve a stable electron configuration (like noble gases). So, the charge is - 2.

Answer:

-2