Across
- 4. same type of atoms grouped together
- 5. hold molecules together
- 7. 2 or more elements that are chemically bonded
- 8. a group of atoms that are held together by chemical bonds
- 9. elements that are grouped together but not chemically bonded
- 10. anything that has mass and takes up space
Down
- 1. uses symbols and numbers to show the types of atoms and how many are in a compound
- 2. where all 118 elements are organized into
- 3. building blocks
- 6. when a metal is mixed with one or more elements