Chemistry Crossword Puzzle

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Across
  1. 5. - the name for the element with atomic number 89. It is a member of the actinide group.
  2. 7. - a discrete packet of matter or energy, plural is quanta.
  3. 8. - a chemical species that accepts electrons or donate protons or hydrogen ions.
  4. 11. - is the name for the element with atomic number 8. It is a member of the nonmetal group.
  5. 12. - unable to dissolve in a solvent.
  6. 13. - stable negatively charged subatomic particle
  7. 14. - a medium believed to carry light waves in the 18th and 19th century.
  8. 15. change - process by which one or more substances are altered to form new substances.
  9. 16. - is the name for the element with atomic number 20. It is a member of the alkaline earth metal group.
  10. 17. - instrument used to measure atmospheric pressure.
  11. 20. - is the name for the element with atomic number 12. It is an alkaline earth metal.
  12. 22. - is the name for the element with atomic number 30. It is a member of the transition metals group.
  13. 23. - radioactive metal and atomic number is 97.
  14. 26. - a chemical change that forms new substances.
  15. 28. - a condensable gas
  16. 30. - SI unit of energy equal to the kinetic energy of a 1 kg mass moving at 1 m/s.
  17. 31. - group of techniques used to separate mixture components by passing the mixture through a stationary phase
  18. 32. - the mixture of gases that make up the Earth's atmosphere, consisting mainly of nitrogen, with oxygen, water vapor, argon, and carbon dioxide.
  19. 34. law - law that states the properties of elements recur in a predictable and systematic way when they are arranged by increasing atomic number.
  20. 35. - a homogenous mixture in which dispersed particles do not settle out.
  21. 37. - a standard used for comparison in measurements.
  22. 40. - any matter or substance that has mass.
  23. 41. - is the chemistry of living things.
  24. 42. - atoms that have the same number of protons, but different numbers of neutrons and thus different atomic weight values.
  25. 44. - is element number is 70
  26. 45. - chemical reaction between an acid and base that results in a neutral solution.
  27. 46. - is an element with an atomic number of 54 and atomic weight of 131.29. It is an odorless inert gas that is used to fill cathode ray tubes.
  28. 48. -Several definitions of alchemy exist. Originally, alchemy was an ancient tradition of sacred chemistry used to discern the spiritual and temporal nature of reality, its structure, laws, and functions.
Down
  1. 1. bond - chemical link between atoms or ions in which the electron pairs are more or less evenly shared between them.
  2. 2. energy - energy associated with motion.
  3. 3. - either a substance in which all atoms are linked by single bonds, a solution that contains maximum dissolved solute concentration, or a thoroughly wetted material.
  4. 4. - mass per unit volume
  5. 6. unit - an SI unit made from a combination of the base units
  6. 9. - luminescence released when an atom absorbs electromagnetic radiation and emits a photon when the electron falls to a lower energy state.
  7. 10. - material which permits the flow of energy
  8. 16. - chemical reaction between a fuel and oxidizer that yields energy (usually heat and light)
  9. 18. - a substance that contains an -OH group attached to a hydrocarbon.
  10. 19. - scientific study of heat, work, and related properties of mechanical and chemical systems.
  11. 21. acid - an acidic binary compound in which one element is hydrogen and the other element is another nonmetal.
  12. 24. - noble gas and atomic number is 10
  13. 25. - a compound formed by one oxygen atom and two hydrogen atoms. Usually this refers to the liquid form of the molecule.
  14. 27. - energy that flows between matter samples because of a temperature difference.
  15. 29. gas law - law which states the ratio of the product of pressure and volume, divided by the absolute temperature, is a constant value.
  16. 31. - halogen with atomic number is 17
  17. 33. - alkaline earth metal and atomic number is 4.
  18. 36. - metal with element symbol Pb and atomic number 82.
  19. 38. point - temperature at which a liquid's vapor pressure is equal to the external gas pressure.
  20. 39. - alkaline earth metal and atomic number is 56.
  21. 40. property - characteristic which may be observed when matter undergoes a chemical change.
  22. 43. - is the name for the element with atomic number 83. It is a member of the metal group
  23. 47. - state of matter characterized by having neither a defined shape nor defined volume.