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						 Half-life period of Ruthenium (Ru) | 
						
						
						
						
							
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							    | Find half-life period of radioactive isotopes of different elements; find its decay type and list of particle emitted. Half-life is the time required for a quantity of radioactive element to reduce to half of its initial value. |   
								
								
 Half-life period of Ruthenium (Ru)
| Element | Mass | Symbol | Decay Type | Half-Life | 
|---|
 | Ruthenium | 103 | 103Ru | Beta decay (ß-), Gamma decay | 39.26 days |  | Ruthenium | 105 | 105Ru |  | 4.44 hours |  | Ruthenium | 106 | 106Ru | Beta decay (ß-) | 373.59 days |  | Ruthenium | 95 | 95Ru |  | 1.643 hours |  | Ruthenium | 97 | 97Ru | Electron capture (e), Gamma decay | 2.9 days  |  
  
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