Across
- 5. composed of atoms from more than one element held together by chemical bonds
- 7. the type of charge a proton has
- 11. the type of charge a neutron has
- 15. a mixture in which the composition is not uniform throughout the mixture
- 16. building block of all matter
- 17. how you know how many protons are in an element
- 18. the smallest piece of a compound
Down
- 1. when a log is cut
- 2. when a piece of bread is burnt
- 3. A chemical property of matter
- 4. a thing that is composed of two or more separate elements
- 6. The amount of matter in an object is a measure of the object's...
- 8. another word for a homogeneous mixture
- 9. A substance that cannot be decomposed into simpler substances
- 10. a mixture in which the composition is uniform throughout the mixture
- 12. The state in which matter completely fills its closed container
- 13. the state of matter when the particles are moving the slowest
- 14. the type of charge an electron has