Module 3 Chemistry Vocab

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Across
  1. 2. identity change of an atomic nucleus
  2. 7. electron beam
  3. 8. atom mass number
  4. 9. represents the reactants and products
  5. 13. alpha particles are emitted to restore balance
  6. 14. emission of ionizing radiation
  7. 15. different numbers of neutrons in the nuclei
  8. 17. high energy electrons carrying a negative charge
  9. 19. particle with no electric charge
  10. 20. number of protons and nuetrons in a nucleus
Down
  1. 1. helium nucleus
  2. 3. particle with negative charge
  3. 4. penetrating electromagnetic radiation
  4. 5. high energy, high speed electron or positron
  5. 6. a unit of mass for atomic and molecular weights
  6. 10. number of protons in the nucleus of the atom
  7. 11. emission of energy in the form of waves
  8. 12. atomic nucleus loses energy by radiation
  9. 16. particle with negative charge
  10. 18. smallest unit of matter