Discovering Atomos

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Across
  1. 1. form of matter with no definite shape, weight, or size
  2. 4. name for a column of the periodic table, based on number of valence electrons in atom
  3. 7. a variation of an atom based on loss or gain of an electron
  4. 9. form of matter that has a definite shape and volume
  5. 10. two or more elements combined chemically
  6. 12. a principle particle in an atom that has no electrical charge
  7. 14. chemical bond between two elements formed by sharing electrons
  8. 15. specific form of matter composed of only one type of atom
  9. 17. form of matter that does not have a definite shape but has a definite volume
  10. 18. the name for a row in the periodic table, determined by highest energy level where electrons can be found in an atom of that elements
Down
  1. 2. smallest form of matter
  2. 3. an atom that has lost an electron
  3. 5. positiviely charged particle found in the nucleus of an atom
  4. 6. an atom that has gained an electron
  5. 8. central core of an atom
  6. 11. a group of two or more atoms linked by a chemical bond
  7. 13. negatively charged particle in an atom
  8. 16. two or more elements that are combined physically rather than chemeically