Across
- 2. period number
- 5. the study of substances
- 7. where you can find it naturally
- 9. building blocks of atoms
- 11. the element group its in
- 12. what its used for
- 14. atomic mass
- 15. found in the orbitals
Down
- 1. group number
- 3. atomic number
- 4. a place for elements to be organized
- 6. chemical symbol
- 8. element on the periodic table
- 10. electron in the outer shell
- 13. in the nucleus of an atom