Question

What is the nucleus of an oxygen atom has a charge of?

Answer 1

It has a charge of -2. It has 8 protons and 10 electrons. Protons= positive, electrons= negative.
8 + -10=-2

Answer 2

The NUCLEUS has a neutral charge because the protons and neutrons are equal. The electrons may give the atom as a whole a negative charge of -2 because there are 2 more electrons than protons.