chemistry

2. metal- any of the six chemical elements that make up Group 1 (Ia) of the periodic table
3. a column in the periodic table of the chemical elements
5. a simple substance that cannot be broken down into smaller parts or changed into another substance
6. a process in which one or more substances, the reactants, are converted to one or more different substances, the products
10. a subatomic particle that is found in all atoms.
11. particle- composite particles consisting of two protons and two neutrons tightly bound together

1. electrons revolve around the nucleus in a specific circular path known as orbit
2. the total mass of particles of matter in an atom
4. subatomic particles found inside the nucleus of every atom
7. The smallest part of a substance that cannot be broken down chemically
8. the ability of a substance to interact chemically with a second substance
9. The horizontal rows of the periodic table
12. a positive electrical charge