Across
- 2. positive charge in the nucleus
- 3. no shape or volume
- 4. how much matter is in an object
- 7. amount of space taken up by an object
- 8. center of an atom
- 9. A state of matter with no definite shape but had volume
Down
- 1. smallest particle in an element
- 2. fourth state of matter
- 5. atomic mass unit
- 6. state of matter with definite shape or volume