chemistry

3. The phase change from a solid to a liquid
8. the temperature in which the substance starts to melt
10. the metals of Group 1 on the periodic table
11. an atom that is defined by its atomic number
13. an element which is not metallic
15. H2O a chemical substance, a major part of cells and Earth, and covalently bonded
16. Group 17 on the Periodic Table and are all non-metals
19. A state of matter in which cohesive force is less than or equal to the separating force
20. the change of one or more substances into another or multiple substances
21. formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid
23. homogeneous mixture made up of multiple substances. It is made up of solutes and solvents.
25. The amount of mass per unit volume. d = m/V

1. a positive unit or subatomic particle that has a positive charge
2. is the same as a proton or electron but without a charge
4. energy transferred from one system to another by thermal interaction
5. the metals of Group 2 on the periodic table
6. gases group 18 elements, those whose outer electron shell is filled
7. material with definite chemical composition
9. the part of the solution that is mixed into the solvent (NaCl in saline water)
12. particles that fill their container though have no definite shape or volume
14. the number representing an element which corresponds with the number of protons within the nucleus
17. the temperature in which the substance starts to boil
18. a phase transition from solid to limewater fuel or gas
22. the part of the solution that dissolves the solute (H2O in saline water
24. Chemical element that is a good conductor of both electricity and heat and forms cations and ionic bonds with non-metals