Like insulin, glucagon lacks a plasma carrier protein, and like insulin its circulating half life is also about 5 minutes. |
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All isotopes of fermium are radioactive, with fermium-257 having the longest half life, 20.1 hours. |
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A long half life would be desirable in order for it to be able to build up in all cells. |
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It is unstable, and scientists know that it radioactively decays by electron emission to Nitrogen 14, with a half life of 5730 years. |
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Radon is a naturally occurring radioactive noble gas, the most significant isotope of which is radon-222 with a half life of 3,82 days. |
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The true field half life of PeCB is estimated around 6 years in organic soil and sediment in the temperate zone. |
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Iodine-131 decays with beta and gamma emissions with a physical half life of 8.04 days. |
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