The halogen are highly reactive because they ____.

A./ Easily gain electron
B./ Easily lose electron
C./ Do not lose eletron
D./ Stable

Metal at the right of the periodic table formed ____
A./ Anion
B./ Cathode
C./ Anode
D./ Cation

Non-metal at left hand of the periodic table formed ____
A./ Anion
B./ Cathode
C./ Anode
D./ Cation

Which of the choice below is an example of a substance made up of atom

A./ Bromine
B./ Chlorine
C./ Aluminum
D./ Oxygen​