Physical Science Quiz:Matter

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Across
  1. 2. vertical column with the same properties
  2. 4. metal opposite characteristics of a metal
  3. 5. release of energy with the nucleus
  4. 7. gases least reactive and in atmosphere
  5. 8. cloud possible locations of an electron in an atom
  6. 10. no charge particle
  7. 11. radioactive
  8. 13. induce hardness onto metals
  9. 15. horizontal row with the same properties
  10. 16. energy with ionizing radiation
  11. 20. center of an atom with protons and neutrons
  12. 21. ion ion with more protons than electrons
  13. 22. an atom with a different number of neutrons
  14. 24. element that is shiny,conducts electricity, heat
  15. 25. kill micororganisms+make salt
Down
  1. 1. unchanging,less reactive
  2. 3. ion ion with more electrons than protons
  3. 6. positively charged particle
  4. 9. element like metals and nonmetals
  5. 12. number number of protons in an atom
  6. 14. atom with more or less electrons
  7. 17. atomic mass unit
  8. 18. Group 2A of reactive metals
  9. 19. negatively charged article
  10. 23. metals Group 1A of reactive metals