Across
- 2. The branch of science that deals with the properties, composition, and structure of elements and compounds.
- 6. the basic unit of a chemical element.
- 7. A solid material that is typically hard shiny.
- 9. Number The quantity of matter contained in an atom of an element.
- 10. A small, positively charged particle of matter.
Down
- 1. The number of atoms of that element.
- 3. Mass The number of protons in the nucleus of an atom.
- 4. A substance made from two or more different elements that have been chemically joined.
- 5. A small particle with a negative charge of matter.
- 8. Anything that takes up space.