atom choice assignment

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Across
  1. 5. outside the nucleus negatively charged
  2. 7. holds the protons and neutrons(the brain)
  3. 8. the building blocks of the universe
  4. 10. the type of charge that a electron has
Down
  1. 1. inside the nucleus positively charged
  2. 2. holds the electrons, outside the nucleus
  3. 3. a ___________ charge
  4. 4. the type of charge that a proton had
  5. 6. the size of a proton and neutron
  6. 9. inside the nucleus no electrical charge