Answer:
Explanation:
Electrons are the negatively charged particles of an atom that are involved in chemical reactions. They are located outside the nucleus of an atom
The chemical formula for this compound is CaCl2.
Answer:
experiment can show the movement of pollutants through the groundwater!
Explanation:
the compound is B.
Water is a compound because it is made up of water molecules.
Answer:
Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level.
Elements: Argon
