Across
- 2. Model that shows orbitals
- 3. All have 1 valence electron - _____ Metals
- 5. Atoms with negative charge
- 7. Atoms with positive charge
- 9. Who first organized the periodic table?
- 10. Atoms of the same element that have different numbers of neutrons and thus different masses
- 12. Electrons on the outer orbital
- 13. When 2 nonmetals form
- 17. Need 1 electron to have full outer orbital
- 19. Most accurate model
Down
- 1. Who found each element's atomic number?
- 3. Have 2 valence electrons - _____ Earth Metals
- 4. Dull, brittle, poor conductors, and most are gasses
- 6. When Nonmetals bond with metals
- 8. Shiny, malleable, ductile, and good conductors
- 9. Elements on the staircase of the periodic table
- 11. Model that shows valence electrons and the symbol of the element
- 14. Unreactive group, outer orbital is full
- 15. 2 atoms bonded covalently - _____ Molecule
- 16. An atom with a charge
- 18. Form when halogens bond with alkalis