science vocabulary! Created by: Javon Bowser!

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Across
  1. 2. positively charged particles
  2. 4. amount of matter in a substance
  3. 6. the degree of compactness of a substance
  4. 13. the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table
  5. 14. any substance that cannot be decomposed into simpler substances by ordinary chemical processes
  6. 15. theory consisting of a positively charged nucleus with electrons revolving around it in any of many possible circular orbits each corresponding to a distinct energy state
  7. 16. atoms are completely apart in this state of matter
  8. 17. the central part of an atom that comprises nearly all of the atomic mass and that consists of protons and neutrons
Down
  1. 1. composed of or resulting from union of separate elements
  2. 3. atoms are compressed together during this state of matter
  3. 5. the mass of an atom of a chemical element expressed in atomic mass units
  4. 7. neutral charged particles
  5. 8. is often referred to as the Father of the Periodic Table
  6. 9. negatively changed particles
  7. 10. cloud molecule a group of electrons circulating around a nucleus/molecule
  8. 11. atoms are slightly spread out in this state of matter
  9. 12. a table of chemical elements arranged in order
  10. 13. basic unit of matter