Chemistry Crossword Puzzle

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Across
  1. 2. meaning one
  2. 4. a negatively charged ion
  3. 7. a positively charged ion
  4. 9. electrons are delocalized among metal atoms
  5. 11. orbit the nucleus in stated areas or energy levels
  6. 12. positively charged particles and controls the identity of the atom
  7. 13. how much matter occupies a given amount of space
  8. 14. the elements found in group 17 are called
  9. 17. attraction an atom has for a shared pair of electrons
  10. 19. an element that has properties that are intermediate between those of metals and nonmetals
  11. 20. a chemical bond that involves the sharing of electrons to form electron pairs between atoms
Down
  1. 1. negligible particles and controls the mass of an atom
  2. 3. the central part of the atom
  3. 5. a set of rules to generate systematic names for chemical compounds
  4. 6. anything that can occupy a space and has mass
  5. 8. atoms of the same element but having different mass
  6. 10. attraction between atoms or ions that enables the formation of molecules, crystals, and other structures
  7. 15. electrons are transferred from metal to nonmetal
  8. 16. smallest particle of an element
  9. 18. meaning two