Noun
a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)
Source: WordNetAfter 258 Md, the next most stable mendelevium isotopes are 260 Md with a half-life of 31.8 days, 257 Md with a half-life of 5.52 hours, 259 Md with a half-life of 1.60 hours, and 256 Md with a half-life of 1.27 hours. Source: Internet
Among the 15 known isotopes of mendelevium (mass numbers from 245 to 260), the most studied is 256 Md, which mainly decays through the electron capture (α-radiation is ≈10%) with the half-life of 77 minutes. Source: Internet
All of the remaining mendelevium isotopes have half-lives that are less than an hour, and the majority of these have half-lives that are less than 5 minutes. Source: Internet
A total of sixteen mendelevium isotopes are known, the most stable being 258 Md with a half-life of 51 days; nevertheless, the shorter-lived 256 Md (half-life 1.27 hours ) is most commonly used in chemistry because it can be produced on a larger scale. Source: Internet
In 1955, mendelevium was synthesized by irradiating a target consisting of about 10 9 atoms of 253 Es in the 60-inch cyclotron at Berkeley Laboratory. Source: Internet
In particular, einsteinium was used to synthesize, for the first time, 17 atoms of the new element mendelevium in 1955. Source: Internet