Atomic Structure/ Nuclear Chemistry

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Across
  1. 1. The time it takes for half of a sample to decay
  2. 5. high power type of radiation emitted as a wave not a particle
  3. 7. center of the atom where mass of atom is found
  4. 8. alpha, beta and gamma are examples of decay
  5. 10. two small nuclei fuse together to form a larger helium particle
  6. 11. found in the nucleus with a positive charge
  7. 13. number number that is made up of protons and neutrons
  8. 14. subatomic particle with a negative charge
Down
  1. 2. number identifies the atom
  2. 3. Has the same protons different neutrons
  3. 4. energy given off by matter in the form of particles or energy
  4. 6. moderate power type of radiation identical to an electron
  5. 7. Found in the nucleus with a neutral charge
  6. 9. low power type of radiation identical to helium nucleus
  7. 10. a large nucleus is hit by a neutron and split apart
  8. 12. cloud outer area of the atom that gives it size