Atomic Theory 1

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Across
  1. 3. Positive charged particle that identifies the element.
  2. 6. element found in most living things
  3. 7. has 29 neutrons
  4. 9. Negative charged particle known for interacting with other atoms
  5. 12. commonly found in computer chips
  6. 14. a chemical property of an atom
  7. 16. Atomic number 18
Down
  1. 1. A different "version" of an atom when the neutrons change.
  2. 2. atomic number 16
  3. 4. Has 8 electrons (when neutral).
  4. 5. a physical property of an atom
  5. 6. radioactive chemical element with the symbol Cf
  6. 8. atomic mass is 118
  7. 10. Atomic mass 63.54
  8. 11. protons and neutrons in the center of atom
  9. 13. Hydrogen's isotope with 2 neutrons.
  10. 15. gold