Abigail Dunn Chapter 9 (Mr.Burkholder) All From Online Notes

1234567891011121314151617
Across
  1. 5. Compounds consisted of atoms of different elements combined together
  2. 6. levels any of the possible energies an electron may have in an atom
  3. 8. equal to the number of protons plus neutrons
  4. 9. (blank) has a positive charge
  5. 12. called these bits of stuff atomos
  6. 14. (blank) model of atom
  7. 15. Sometimes called the wave model
  8. 16. 3rd row 4th one
  9. 17. 4th row 12th one
Down
  1. 1. Move around the outside of the nucleus
  2. 2. an electron in the outermost energy level
  3. 3. Electrons move in definite orbits around the nucleus
  4. 4. law of conservation of matter
  5. 7. Number of protons
  6. 8. Average mass of the naturally occuring isotopes of an element
  7. 10. Plum pudding model
  8. 11. (blank) has no electrical charge
  9. 13. Discovered the neutron