Across
- 1. relative firmness
- 3. perfect molecular mobility or infinite expansion
- 4. smallest component of an element
- 5. positively charged element
- 6. substance produced by or used in chemical process
- 8. smallest physical unit of an element
- 12. negitivly charged element
- 13. molecules move freely
Down
- 1. that of which a thing consists of
- 2. electrically charged atom or group of atoms
- 7. composed of two or more parts
- 9. substance made of a system of particles with linear dimensions
- 10. particle having no charge
- 11. compound usually having a sour taste