Across
- 1. anything that has mass and occupies space
- 6. CO2, H2O, NaCl
- 8. a mixture that contains various composition
- 11. when solid phase changes directly to gas phase
Down
- 2. elements that are in the B block
- 3. regions in molecular arrangement that is random
- 4. particles are highly packed with very little movement
- 5. elements that belong to group 7A
- 7. the number of periods on the periodic table
- 9. the element symbol is Na
- 10. rows of elements on the periodic table