Nuclear Energy and Radioactivity, Vocabulary!

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Across
  1. 1. Amount of time for an Isotope to equal half its value
  2. 4. On the periodic table it is located under the element
  3. 6. You can also describe fission as this.
  4. 11. Found on the sun/stars
  5. 12. A particle with no/neutral charge
  6. 13. Decreases the atomic number by 2 and the mass by 4
  7. 14. Is a decomposition reaction
Down
  1. 2. Is a synthesis reaction
  2. 3. The ability of an atom to emit mass and energy, a process called radiation
  3. 5. Positively charged particle
  4. 7. How you locate an element on the periodic
  5. 8. An unbalanced element (The mass is different then the one on the periodic table)
  6. 9. Increases atomic number by 1
  7. 10. The center of the cell