| A | B |
|---|
| chemistry | the study of matter |
| atom | the smallest part of an element that has all the characteristics of that element |
| element | a substance that contains only one type of atom |
| compound | a substance formed when 2 or more different elements chemically join together; the rearranging of atoms in a chemical change |
| model | something that people use to explain something complicated |
| chemical symbol | an abbreviation for the name of an element |
| *atomic theory | what scientists think about atoms |
