Across
- 2. the atomic model that we will use in class
- 6. the designer of the periodic table as we use it today
- 8. a large particle with no charge (holds protons together)
- 9. any atom in which the mass is greater than usual
- 10. the only family on the periodic table that tends to stay nuetral
Down
- 1. the group that has one valance electron but will easily lose it
- 3. an electron in the outermost energy level of an atom
- 4. a small particle with a negative charge
- 5. a large particle with a positive charge
- 7. any atom that doesn't have a nuetral charge