Question

When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?

A.
+2

B.
-2

C.
+1

D.
-1

Answer 1

electrons have a negative charge thus adding two electrons to an atom will give it a charge of 2 times -1 or -2.

i think its -2

Answer 2

the answer is B. negative 2