Matter

3. notation of one or two letters representing a chemical element
4. a column in the periodic table of the chemical elements
8. a metallic substance composed of two or more elements
12. the number of a chemical element in the periodic system
13. a positively charged particle that resides in the nucleus of an atom
14. an uncharged elementary particle that has a mass nearly equal to a proton
16. sum of the numbers of proton and neutrons
18. a chemical element that mostly lacks the characteristics of a metal
20. the spontaneous passage or diffusion of water or other solvents through a semipermeable membrane
22. an element that readily forms positive ions
23. substance that has mass and takes up space by volume
25. of or relating to the inside of the atom
27. any substance that cannot be decomposed into simpler substances
28. a chemical element that exhibits some properties of metals and nonmetals
29. alternative title for atomic number

1. a fundamental theory of matter that explains physical properties in terms of the motion of atoms and molecules
2. any of the six chemical elements that make up group one on the periodic table
5. rows of the periodic table
6. the act of spreading or allowing to spread freely
7. a tabular display of the chemical elements
9. a chemical element that forms a salt when it reacts with metal
10. a tiny bit of matter that makes up everything in the universe
11. the capacity for doing work
15. the most prominent organelle in a cell
17. how much of a substance is mixed with another substance
19. a negatively charged subatomic particle
21. six chemical elements in group 2 of the periodic table
24. smallest unit into which matter can be divided without the release of electrically charged particles
26. a substance formed when two or more chemical elements are chemically bonded together
30. a group of atoms bounded together