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Half-life period of Samarium (Sm)

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.
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 Half-life period of Samarium (Sm)
MassSymbolDecay TypeHalf-Life
139m139mSm10.7 seconds
141m141mSm22.6 minutes
143m143mSm66 seconds
145145Sm340 days
146146SmAlpha decay (a)103.5 million years
147147SmAlpha decay (a)106 billion years
148148SmAlpha decay (a)7 x 1015 years
151151Sm90 years
153153Sm46.7 hours
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