science crossword

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Across
  1. 2. gases odorless gases
  2. 4. an uncharged particle
  3. 8. cloud the space around the nucleus
  4. 10. the release of ionizing radiation
  5. 13. an element that doesn't conduct electricity
  6. 14. metals very reactive elements
  7. 15. when an atom loses or gains an electron its now a
  8. 17. an element that varies between metal and nonmetal
  9. 19. if you gain one of these its a new element
  10. 21. ion when an atom loses an electron
  11. 23. ion when an atom gains an electron
Down
  1. 1. a column in the periodic table of elements
  2. 3. number the number of protons in the nucleus
  3. 4. made up of protons and neutrons(also the center of an atom)
  4. 5. decay when a nucleus loses radiation
  5. 6. 15 elements in the periodic table
  6. 7. can be in multiple places around an atom at once
  7. 9. metals metallic elements
  8. 11. 5 nonmetallic elements in the periodic table
  9. 12. metals strongly basic metals
  10. 14. 15 metallic elements atomic number 89
  11. 16. average mass unit
  12. 18. a row of elements
  13. 20. the same element with a different number of neutrons
  14. 22. a substance with high electricity