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, e.g.lead.
  5. 10. The electrical charge of a neutron.
Down
  1. 1. The solid core of an atom.
  2. 2. Very small pieces of matter.
  3. 4. Positively charged particles found in the nucleus.
  4. 5. Tiny particles from which everything is made.
  5. 9. Negatively charged particles orbiting the nucleus.