Chemistry of Life 1

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Across
  1. 3. the smallest particle of matter, made of protons, neutrons and electrons
  2. 4. the part of the atom with a positive charge
  3. 8. positive does this to positive
  4. 11. a space for an electron on the outer shell of an atom
  5. 12. extra electrons have flown from one place to another, like lightning
  6. 14. positive does this to negative
  7. 16. one kind of atom; there are 118 of them
  8. 17. the part of the atom with a negative charge
  9. 18. matter that flows freely but keeps its volume, like water
  10. 19. a molecule made of one oxygen and two hydrogens
Down
  1. 1. the smallest element, has only one proton
  2. 2. anything that has mass and takes up space
  3. 5. matter that keeps its shape and density
  4. 6. the kind of bond where two atoms share electrons
  5. 7. having more electons on one side and less on the other
  6. 9. matter with no fixed shape or volume,usually invisible
  7. 10. the space an electron takes up around a nucleus
  8. 13. having more or fewer electrons than protons
  9. 15. the part of the atom that has no charge