Answer:
Chlorine is a very reactive non metals because this element don't form any known chemical compound.
Explanation:
Chlorine atoms have a lot of valance electrons without being complete on its own, so it has a greater need to seek it's conjugates. That's called electronegativity. Halogens are highly reactive because of their electronegativity.
Answer:
B and E
Explanation:
These two options support the theory of plate tectonics.
Because it is a covalent bond meaning that they share the electrons to achieve full valence.