Across
- 1. Cause atoms to be unstable.
- 3. Smallest unit of matter.
- 4. Neutral particle.
- 7. Holds all atom information.
- 8. Positively charged particle.
- 9. Type of classification for non conductive atoms.
- 12. Classifies different types of atoms on the periodic table. For example: Alkaline Earth metals.
- 13. First number above the atoms on periodic table.
- 16. How many levels an atom has.
Down
- 2. Holds electrons outside core.
- 5. Name of the person that made this
- 6. Second atom form on the periodic table.
- 8. Number that shows how much energy levels an electron has.
- 10. Type of classification for atoms with characteristics from metal and nonmetals.
- 11. First atom form on the periodic table.
- 14. Negatively charged particle.
- 15. Type of classification for very conductive atoms.