nuclear vocab annabella roberts

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Across
  1. 2. the number of protons in the nucleus of an element
  2. 5. composite particles consisting of 2 protons and neutrons bound together
  3. 7. one or more species of atoms of a chemical element with the same atomic number
  4. 9. second letter o the greek alphabet
  5. 10. dividing something into 2 parts
  6. 12. the decay process in which atomic nucleus loses energy
  7. 13. joining things to form a single entity
Down
  1. 1. the third letter of greek alphabet
  2. 3. several species with the same chemical element
  3. 4. a subatomic particle with a neutral charge.
  4. 6. the time taken for radioactivity of an isotope to get to the number of half its original size
  5. 8. a stable subatomic particle that with a positive charge
  6. 11. the total number of protons and neutrons in a nucleus