1. How does oxygen atom become oxygen ion?
A. by doing nothing
C. by gaining 2 electrons
B. by losing 2 electrons D. by going home to sleep
2. If an element has 1 valence electron, what will its ion most likely have?
A. +1
B. -1
C. +2
D.-2
3. How does an atom lose an electron?
A. when it donates electrons to another atom
B. when it destroys its electrons
C.when it sends it electrons away to colloge
D.when its electrons run away​