Question

when an oxygen atom forms an ion, its gains two electrons. what is the electrical charge of the oxygen ion? -1 -2 +2 +1​

Answer 1

-2

Step-by-step explanation:

I took the quiz

Answer 2

An oxygen atom has 6 valence electrons and 8 electrons in total. Electrons have a negative charge. So when it gains 2 more electrons it becomes stable because of the octet rule. So it has a negative charge of 2. The answer is -2