Across
- 3. group that goes left to right
- 5. are the most reactive metals on the table
- 7. in the nucleus with no charge
- 9. highly reactive, nonmetal, wrong side of table
Down
- 1. In the nucleus with a positive charge
- 2. outside of the nucleus with a negative charge
- 4. an electron in the outermost part of the atom
- 6. where the electrons protons and neutrons are placed
- 8. group, up and down
- 10. first name of the man who made the periodic table