Write the complete decay reaction for the spontaneous decay
     Write the complete decay reaction for the spontaneous decay of^90_38Sr.  What kind of emission is given off during the decay reaction?  Name and describe the three types of radiation given off by nuclear decay reactions. 
  
  Solution
Q.1 (a) Strontium-90 undergoes decay into Yttrium-90, with a decay energy of 0.546 MeV.
Q.2 Nuclear decay -> Alpha decay, (+/-) - Beta decay and Gamma decay.

