Across
- 3. Metals conduct heat and ___________ well
- 5. Basic building block of all matter
- 6. Negatively charged Particle
- 9. when different elements join together they form this
- 10. _____ gases,neon,argon,krypton.radon,xenon
Down
- 1. A mixture where one substance dissolves in the other
- 2. elements are listed on the _____ Table
- 4. A ____ reaction is when a set of substances undergo a chemical change and form a different substance
- 7. A pure substance made from a single type of
- 8. The center of the atom