Tin-121m

Tin-121m

Tin-121m is a radioisotope and nuclear isomer of tin with a halflife of 43.9 years. In a normal thermal reactor, it has a very low fission product yield; thus, this isotope is not a significant contributor to nuclear waste.

Fast fission or fission of some heavier actinides will produce 121mSn at higher yields.

ee also

*Tin-126
*Isotopes of tin


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