Across
- 2. an item that can't be easily broken into smaller pieces
- 4. table, a table of chemical elements arranged in order of atomic number
- 6. flammable gas
- 8. No electric charge
- 9. nothing in it
- 10. firm and stable in shape, not liquid or fluid
- 12. goes in cars
Down
- 1. a stable subatomic particle occurring in all atomic nuclei
- 3. a negatively charged subatomic particle that can be either bound to an atom
- 5. the chemical element of atomic number 6
- 7. A positively charged thing
- 11. not a solid or gas