Periodic Table

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Across
  1. 5. Anything made of atoms that takes up space, and has mass
  2. 6. The group of elements that share similar properties
  3. 7. Measure of gravitational pull on an object
  4. 9. A substance formed when two elements are chemically combined
  5. 11. Amount of space something takes up
  6. 12. The letters that an element is defined by
  7. 13. Negatively charged particle that adds weight to an atom
  8. 15. Amount of matter in an object
  9. 16. A substance formed when two elements are physically combined
  10. 17. How closely spaced the atoms in an object are
  11. 19. Positively charged particle that defines the atom
Down
  1. 1. The number which an element is defined by
  2. 2. A substance dissolved in another substance
  3. 3. Number of elecrons in the outer shell (orbital)
  4. 4. Horizontal row of elements
  5. 8. The digits at the bottom of an element
  6. 10. Rule that states "atoms will always react unless they have a full shell."
  7. 11. How fast or slow a liquid flows
  8. 14. Neutral particle that appears in the nucleus
  9. 18. An electrically charged element formed by electron movement