Chemistry Vocab

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Across
  1. 2. The smallest unit of matter
  2. 5. Atoms with an unequal amount of protons and electrons
  3. 6. An atom with more or less neutrons than it should have
  4. 7. The center of the atoms made up of protons and neutrons
  5. 9. Matter that can be separated by physical means
  6. 10. Pure substances made up of identical atoms
  7. 11. Pure substances made up of molecules
Down
  1. 1. Table What are the elements organized in?
  2. 3. The russian chemist who formulated the periodic table
  3. 4. Particles with negative charge
  4. 7. Particles with neutral or no charge
  5. 8. Particles with a positive charge