Structure of the atom

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Across
  1. 1. This is where protons and neutrons are located in an atom
  2. 4. This subatomic particle has a charge of -1 and a mass of 0
  3. 6. Where you can find all 118 known elements
  4. 8. The number of protons or electrons in an atom
  5. 10. Contains protons, neutrons and electrons
  6. 11. This is where electrons are located in an atom
Down
  1. 2. These can be found on the periodic table
  2. 3. This subatomic particle has a charge of +1 and a mass of 1
  3. 5. The science which uses the periodic table all the time
  4. 7. The total number of protons and neutrons in the nucleus of an atom
  5. 9. This subatomic particle has a charge of 0 and a mass of 1