Across
- 4. table a table of the elements arranged in order of increasing atomic number based on the periodic law.
- 6. an atom or molecule with a net electrical charge
- 7. mass per unit of volume
- 11. the smallest unit of matter
- 12. make up the periodic table
- 13. opaque lustrous elements that are good conductors of heat and electricity.
- 15. Change a change of a substance
Down
- 1. mass the total mass of particles of matter in an atom.
- 2. subatomic particles with a positive electrical charge
- 3. force that exists among all material objects in the universe.
- 5. Change a type of change where the physical properties of matter change.
- 8. Conductivity the ability of a material to conduct heat from one side to the other.
- 9. atoms with the same number of protons and electrons but a different number of neutrons
- 10. the measure of the amount of matter in a body.
- 14. Conductivity those that can conduct electricity to a greater or lesser extent.