ATOMS 1

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Across
  1. 3. the electrical charge of an electron
  2. 6. Particles found in the nucleus with no electrical charge.
  3. 7. The electrical charge of a proton.
  4. 8. Materials on Earth that are composed of only one type of atom like lead.
  5. 10. the electrical charge of a neutron.
Down
  1. 1. contains protons and neutrons
  2. 2. very small pieces of matter.
  3. 4. positively charged particles found in the nucleus of an atom.
  4. 5. tiny particles from which everything is made
  5. 9. Negatively charged particles orbiting the nucleus of an atom.