atoms and elements

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Across
  1. 2. A substance made by mixing other substances together.
  2. 3. A column of the periodic table.
  3. 4. Very tiny particles that all matter is made of
  4. 6. A condition where the total positive charge is canceled by the total negative charge. The matter is neutral most of the time.
  5. 7. Tiny, a very light particle that has a negative electric charge.
  6. 9. A solid that contains two or more elements mixed together, often two metals or a metal and a non-metal.
  7. 12. Allows heat and electricity to pass easily through the material.
  8. 13. A row of the periodic table.
  9. 15. One that can be stretched into a thin wire.
Down
  1. 1. Large and heavy like a proton but has no electric charge.
  2. 2. Everything that has mass and takes up spaces.
  3. 5. One that can be pounded into shapes.
  4. 8. One that is attracted to magnets and can be made into magnets.
  5. 10. The ability to be dissolved, especially in water.
  6. 11. Much larger and heavier particle that has a positive electric charge.
  7. 14. The center of the atom.