Across
- 3. Negatively charged subatomic particles
- 6. The study of what substances are made of
- 7. Makes up 78% of the air we breathe
- 9. Tiny particles that all matter is made of
- 10. The first column on the periodic table
- 11. Mixture of metals
Down
- 1. the substance in which the solute dissolves
- 2. A pure substance made of only one kind of atom.
- 4. A mixture when one substance dissolves another
- 5. Building blocks of protein
- 8. The Centre of an atom