Across
- 2. A positively charged particle in the nucleus of an atom.
- 4. A column on the periodic table.
- 7. The center of the atom that contains most of the mass
- 9. A substance made of only one kind of atom.
- 10. A small particle that is the building block of matter.
- 11. A row on the periodic table.
- 13. A substance with a pH of less than 7.
- 15. A mixture where the substance are not evenly mixed.
- 16. Matter with a definite volume but no definite shape.
Down
- 1. Anything that has mass and takes up space.
- 3. An uncharged particle in the nucleus of an atom.
- 5. A negatively charged particle that occupies space in an atom outside of the nucleus.
- 6. A substance with a pH of more than 7.
- 8. A substance made of two or more elements that are chemically joined.
- 12. A combination of an acid and a base that has a neutral charge.
- 14. matter that has a definite shape and a definite volume.