Across
- 2. a group of atoms
- 4. two or more elements chemically bonded together
- 7. atoms of the same type grouped together
- 8. The sign for Europium; element
- 9. a strong force bonding elements
Down
- 1. building blocks of elements
- 2. two or more elements not chemically bonded together
- 3. an abbreviation of table salt; compound
- 5. anything with a mass and takes up space
- 6. table, the thing with 118 elements