Across
- 3. 2 or more substances that are combined that can be physically separated
- 5. an element or a compound
- 8. atoms of the same type grouped together
- 10. formula a combination of symbols and numbers that represent the number and types of elements
Down
- 1. two or more elements chemically joined together
- 2. building blocks
- 3. group of atoms held together with chemical bonds
- 4. in order of increasing atomic number
- 6. anything that has mass and takes up space
- 7. table table in which chemical elements are
- 9. bond attractive force that holds atoms together