Across
- 2. In a atom and has a negative charge
- 4. Verticle columns in the periodic table
- 5. Horozontal row in the periodic table
- 9. Protons and nutrons inside
- 11. # of protons and electrons in a element
- 12. Same mass as a proton
- 15. New substance formed
- 16. Table of elements ordered by atomic #
- 18. Change in size,shape,or state of matter
- 19. Tells # of molecules
Down
- 1. Mix of metal and non-metal
- 3. Outer layer of electrons
- 6. Goupe of electrons circling the nucleus
- 7. Atom with a positive charge
- 8. Shows the # of atoms
- 10. Brittle,dull,insulator
- 13. Majority of the periodic table
- 14. Levles of electrons
- 17. New substance and properties