Across
- 4. Substances that react.
- 6. Can be hammered.
- 7. Spreading of particles throughout a given volume until they are distributed.
- 9. if all the atoms in a substance has the same identity it becomes {blank}.
- 10. Flexible.
- 11. A substance in which the atoms of 2 or more elements are combined.
- 12. The vertical columns in the periodic table.
- 14. This number is the sum of the number of protons and neutrons.
- 15. Area around a nucleus where electrons are mostly found.
- 16. Homogeneous mixture with particles so small that they cannot be seen with a microscope.
Down
- 1. Substances that are made.
- 2. Atoms of the same element that have different numbers of neutrons.
- 3. Numbers in front of each substance in a equation.
- 5. Good conductors of heat and electricity.
- 8. Particles in a atom with no charge.
- 13. Particles in a atom with a positive charge.
- 14. A neutral molecule that forms as a result of electron sharing.