Across
- 3. Matter that can vary in composition.
- 4. _______ are one of the parts of making up the nucleus.
- 5. Most elements are __________.
- 7. A part of an atom that has protons and neutrons in it.
- 9. Anything that has mass and takes up space.
- 11. Matter with a composition that is always the same.
- 12. _________ is a compound composed of carbon and oxygen.
- 14. A small particle that is a building block of matter.
- 15. A mixture of water, sugar, and other substances.
- 16. _______ is another part of making up the nucleus.
- 17. _________ moving in an area outside a nucleus.
- 19. Each element on the ___________ consists of just one type of atom.
- 21. Having nothing else like it.
Down
- 1. A type of mixture in which the individual substances are evenly.
- 2. A type of mixture in which the individual substances are not evenly mixed.
- 6. A substance that consists of just one type of atom.
- 8. __________ is a million times greater than the diameter of an atom.
- 10. The combination of symbols and numbers that represents a compound is called a _________.
- 13. This element is a metalloid.
- 18. A type of substance containing atoms of two or more different element chemically bonded together.
- 20. To form a solution by mixing evenly.