What is the half life of strontium 90?

Strontium-90 is a radioactive isotope. Specifically, it is an isotope of strontium that is produced as the result of nuclear fission. Strontium-90 decays first into yttrium-90, and then very quickly decays further into zirconium-90. The half-life measures how long it takes half the sample of strontium-90 to decay into yttrium-90. read more

Strontium-90 ( 90 Sr) is a radioactive isotope of strontium, with a half life of 28,79 years. read more

The half-life is the approximate amount of time it takes an amount of an unstable element to decay to half of it's size. This means that after 28 years, 50% of the amount of Strontium-90 will have decayed, no matter what the size of the amount is. read more

Strontium-90 (90 Sr) is a radioactive isotope of strontium produced by nuclear fission, with a half-life of 28.8 years. It undergoes β − decay into yttrium-90, with a decay energy of 0.546 MeV. Strontium-90 has applications in medicine and industry and is an isotope of concern in fallout from nuclear weapons and nuclear accidents. read more