Science

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Across
  1. 3. / atoms of the same element that contain the same number of protons and electrons but a different number of neutrons.
  2. 6. / rate of flow of electric charges through a conducting medium
  3. 10. / number of protons and electrons in the atom.
  4. 12. / difference in energy between two parts of a circuit
  5. 14. / negative part of an atom
  6. 16. / two elements bond together
  7. 18. / transfer of heat by electromagnetic waves
  8. 20. / m/v
Down
  1. 1. / what the periodic table is made of
  2. 2. / the center of an atom
  3. 4. / type of circuit were energy has more than one path to travel
  4. 5. / imbalance of electric charges on the surface of a material
  5. 7. / turning effect of a force
  6. 8. / part of an atom with neutral charge
  7. 9. / movement of heat by a fluid such as water or air
  8. 11. / type of circuit were energy has just one path to travel
  9. 13. / positive part of an atom
  10. 15. / form of transfering energy from one molecule to another by direct contact (solids)
  11. 17. / total number of protons and neutrons in the nucleus of an atom
  12. 19. / charged atom or molecule, the number of electrons do not equal the number of protons in the atom.