Across
- 3. / positively charged particle in the nucleus of an atom
- 4. / Shape of container
- 5. number / Average amount of mass that the element has
- 7. / A molecule made of one type of atom
- 8. / A mixture of substances that look the same
- 9. / Anything with mass or volume
- 10. / No shape
- 12. / Holds shape
- 13. / Neutrally charged particle in the nucleus of an atom
- 14. / A molecule made of more than one type of atom
Down
- 1. / Two or more chemically combined atoms
- 2. / Two or more physically combined atomsom
- 6. number / Number of protons
- 7. / Negatively charged particle in the nucleus of an atom
- 8. / A mixture of visibly different substances
- 11. / Building block of life