Atom Structure and Periodic Table Review

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Across
  1. 4. This is an atom/ element with an atomic number of 7
  2. 6. A positive charged particle
  3. 8. A particle with a negative charge
  4. 10. This is an atom/ element with 34 electrons
  5. 11. This is a substance that cannot be broken down
  6. 12. This tells us the number of energy levels in an atom
  7. 14. This tells us the number of valence electrons
  8. 15. This is equal to protons + neutrons
  9. 16. The location where protons and neutrons are found
Down
  1. 1. This tells us the number of protons in an atom
  2. 2. This is an atom/ element with 29 protons
  3. 3. This is the weight and tells us the number of protons + neutrons in an atom
  4. 5. The location where electrons are found
  5. 7. This is an atom/ element with an atomic number of 78
  6. 9. A particle with a neutral charge
  7. 13. The neutrons have no effect on this