Periodic Table
Across
- 1. stable positively charged particles in the nucleus of every atom
- 4. liquids and gases at room temperature
- 5. found in nucleus alongside protons
- 7. negatively charged particle that orbits the nucleus
- 10. solid, shiny substances on the left and center of periodic table
Down
- 2. metals spanning periods 4-7 of the table
- 3. horizontal rows
- 6. soft, highly reactive metals in group 1
- 8. vertical columns
- 9. possess properties of both metals and nonmetals