Across
- 1. this is a type of substance.
- 3. a horizontal row on the periodic table.
- 8. anything with mass or volume.
- 10. the smallest unit of the element.
- 12. boron falls under this category.
- 15. an atom that has lost or gained, one or more electrons.
- 16. you put this element in balloons.
- 18. a substance that can not be broken down into simpler substances.
- 19. this element falls under transition metals.
- 20. a column (up or down) on the periodic table.
Down
- 2. the smallest unit of the compound.
- 4. describes how likely an element is to form bonds with other elements.
- 5. a stable particle with positive charge.
- 6. this element is found as a setting on jewelry.
- 7. this element is found in milk, and in our bones.
- 9. this element is found in the pools we swim in.
- 11. we breathe this element and it's nonmetal.
- 13. elements and/or compounds that when put together are unable to react chemically.
- 14. this element is very strong.
- 17. an element or substance that conducts heat and electricity.