Physical Chemistry

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Across
  1. 1. the coloumns of the periodic table
  2. 4. The positively charged part of the atom
  3. 7. where all the elemnts are organized
  4. 10. the first person to organize the elemnts into the periodic table
  5. 11. The negatively charged part of an atom
  6. 13. the rows of the periodic table
  7. 15. the neutral part of the atom
Down
  1. 2. A substance that reacts with another
  2. 3. A colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain
  3. 5. inert gases
  4. 6. A new substance produced by a chemical reaction
  5. 8. A substance made up of one kind of atom; it cannot be broken down
  6. 9. The center of an atom that contains protons and neutrons
  7. 12. A substance made up of two or more elements chemically combined
  8. 14. The smallest unit of an element