Atomic Vocabulary

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Use your complete "Introduction to Atoms and Atomic Scientists" assignment to complete this crossword.

  1. Positively charged subatomic particle
  2. Charge of a neutron
  3. Charge of an electron
  4. The cathode ray tube experiments led to the discovery of ___
  5. The scientist who discovered electrons
  6. If a neutral atom has 11 protons, how many electrons does it have?
  7. The center of the atom
  8. Besides energy, everything in the universe is made of ___ (not atoms)
  9. First to theorize that the universe was made up of "atoms"
  10. Dalton's word for combination of two or more different kinds of atoms
  11. Atoms cannot be cut in half, so we say they are ___
  12. If two atoms have the same mass and properties, they are the same ___
  13. All matter is made up of ___
  14. A chemical reaction is when you ___ (meaning to move around and recombine) atoms
  15. The dessert Thomson named his atomic model after
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