Matter

123456789101112131415161718192021222324252627282930
Across
  1. 3. notation of one or two letters representing a chemical element
  2. 4. a column in the periodic table of the chemical elements
  3. 8. a metallic substance composed of two or more elements
  4. 12. the number of a chemical element in the periodic system
  5. 13. a positively charged particle that resides in the nucleus of an atom
  6. 14. an uncharged elementary particle that has a mass nearly equal to a proton
  7. 16. sum of the numbers of proton and neutrons
  8. 18. a chemical element that mostly lacks the characteristics of a metal
  9. 20. the spontaneous passage or diffusion of water or other solvents through a semipermeable membrane
  10. 22. an element that readily forms positive ions
  11. 23. substance that has mass and takes up space by volume
  12. 25. of or relating to the inside of the atom
  13. 27. any substance that cannot be decomposed into simpler substances
  14. 28. a chemical element that exhibits some properties of metals and nonmetals
  15. 29. alternative title for atomic number
Down
  1. 1. a fundamental theory of matter that explains physical properties in terms of the motion of atoms and molecules
  2. 2. any of the six chemical elements that make up group one on the periodic table
  3. 5. rows of the periodic table
  4. 6. the act of spreading or allowing to spread freely
  5. 7. a tabular display of the chemical elements
  6. 9. a chemical element that forms a salt when it reacts with metal
  7. 10. a tiny bit of matter that makes up everything in the universe
  8. 11. the capacity for doing work
  9. 15. the most prominent organelle in a cell
  10. 17. how much of a substance is mixed with another substance
  11. 19. a negatively charged subatomic particle
  12. 21. six chemical elements in group 2 of the periodic table
  13. 24. smallest unit into which matter can be divided without the release of electrically charged particles
  14. 26. a substance formed when two or more chemical elements are chemically bonded together
  15. 30. a group of atoms bounded together