Chemistry Vocabulary

2. Composition is uniform throughout
5. The center of an atom containing protons and neutrons
7. Well tested explanation for a broad set of observations
8. Has a mix of metal and non-metal properties
9. A wave's height from zero to crest
13. Anything that takes up space and has mass
15. The ability of an element to attract electrons when an atom is in a compound
18. A unit of energy or heat
20. Contains one or more hydrogen atoms and produces hydrogen atoms when dissolved in water

1. The number of wave cycles to pass a given point per unit of time
3. A subatomic particle with a charge of +1
4. A character set slightly above the normal word line
6. A solid that forms and settles out of a liquid mixture
10. Discovered the atom scientifically, and invented the atomic theory
11. A substance present at the beginning of a reaction
12. A way for chemists to count the number of representative particles in a substance
14. The charge of an atom, can be positive or negative
16. Molecules fly in all directions at great speeds, with little attractive force
17. Can be broken down into elements
19. The agreement of a set of measurements with the true value