Isotopes of tennessine

Isotopes of tennessine (117Ts)
Main isotopes Decay
abun­dance half-life (t1/2) mode pro­duct
293Ts synth 22 ms α 289Mc
294Ts synth 51 ms α 290Mc

Tennessine (117Ts) is the most-recently synthesized synthetic element, and much of the data is hypothetical. As for any synthetic element, a standard atomic weight cannot be given. Like all synthetic elements, it has no stable isotopes. The first (and so far only) isotopes to be synthesized were 293Ts and 294Ts in 2009. The longer-lived isotope is 294Ts with a half-life of 51 ms.

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