Across
- 3. A negatively charged particle
- 5. combination of two or more materials
- 7. located on the left side of the periodic table
- 8. located on the right side of the periodic table
- 9. positively charged center of an atom
Down
- 1. Gases Elements in family 18
- 2. A positively charged particle
- 4. Table A tool used by chemists
- 6. forms when two or more atoms combine
- 7. display properties of both metals and nonmetals