Across
- 4. When elements go into a chemical process
- 7. The electron on the outer shell
- 8. The amount of mass an atom has
- 9. Become incorporated into a liquid to for a solution
- 10. A type of substance containing atoms of two or more elements
Down
- 1. A number in a chemical formula that tells the number of atoms in a molecule
- 2. Pure substance
- 3. The elements in the 18th group
- 5. The amount of Protons an atom has
- 6. The symbol that represents each element on the periodic table