Across
- 2. A row in the periodic table
- 4. - bent into shape
- 8. A mixture where one substance dissolves in the other
- 9. These particles are positive
- 11. Number of protons in an element is the atomic ____
- 12. Center of an atom
- 13. A column in the periodic table
- 15. - Iron, gold, silver
- 17. Metals conduct heat and ____ well
- 18. These elements include fluorine, chlorine, bromine, iodine, and astatine
Down
- 1. A ____ reaction is when a set of substances undergo a chemical change and form a different substance
- 3. - hold two electrons
- 5. Isotopes of the same element have a different number of these
- 6. A metal that combines two or more elements such as bronze or steel
- 7. Negatively charged particle
- 10. - neither metals nor non-metals
- 14. The basic building block of all matter
- 15. When a solid turns into a liquid
- 16. - Solid state of water