Chemistry

2. A property that becomes evident during or after a chemical reaction
6. Change of form a solid to a gas or a gas to a solid
10. A table of the chemical elements arranged in order of atomic number
12. A mixture in which the solute dissolves into the solvent
13. Any change that results in a formation of a new substance
14. A subatomic particle of about the same mass as a proton but without an electric charge
16. A solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
17. Any of the elements beryllium, magnesium, calcium, strontium, barium, and radium, occupying Group IIA (2) of the periodic table
19. A substance made by mixing two or more substances together
22. Characteristic that describes a particular substance
23. Any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table

1. The total number of protons and neutrons in a nucleus
3. Change in appearance or state that does not change the composition
4. Property that describes a physical appearance of a substance
5. Change of state from gas to solid
7. An element whose properties are intermediate between those of metals and solid nonmetals
8. An element or substance that is not a metal
9. The number of protons in the nucleus of an atom
11. Any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying Group IA (1) of the periodic table
13. A representation of a substance using symbols for its constituent elements
15. A unit of mass used to express atomic and molecular weights
18. Any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table
20. A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge
21. A stable subatomic particle with a charge of negative electricity