Md (likewise referred to as unnilunium, Unu) occurs as synthetic element in the periodic table with a symbol Md (once Mv) & the atomic number 101. The metallic radioactive transuranic element of the actinides, mendelevium is synthesized by bombarding einsteinium with alpha particles and was known as fallowing Dmitri Mendeleev.

Notable characteristics
Investigator stand shown that mv has the moderately stable dipositive (2) oxidation state in addition to the more characteristic (for actinon elements) tripositive (Tierce) oxidation number. Md-256 has been utilized to call for out a bit of of the chemical properties of this element piece within an aqueous solution. No more utilizes of mv & sole trace numbers of the element stand ever been produced.

History
Md (for Dmitri Mendeleyev, surtitle usually spelt when Mendeleev, Mendeléef, or even Mendelejeff, & foremost name occasionally spelt when Dmitry or Dmitriy) was 1st synthesized by Albert Ghiorso (team leader), Glenn T. Seaborg, Bernard Harvey, and Greg Choppin in early 1955. A team produced Md-256 (half-life of 76 minutes) whenever it bombarded an einsteinium-253 target by owning alpha particles (helium nuclei) in the Berkeley Radiation Laboratory's 60-inch cyclotron (Md-256 was synthesized one-atom-at-the-instance). Element 101 was a 9th transuranic element synthesized.

Isotopes
Fifteen radioisotopes of mendelevium use been characterized, by owning the virtually all stalls existence Md-258 using a half-life of 51.5 years, Md-260 by using the half-life of 31.Viii years, & Md-257 by using the half-life of Little phoebe.52 hours. A lot of the left over radioactive isotopes develop half-lifes that come less than 97 transactions, & a majority one have half-lifes that come less than Quintuplet proceedings. This element besides has I meta state, 258m-Md (t_½ 57 minutes). A isotopes of md home in atomic weight from 245.091 amu (Md-245) to 260.104 amu (Md-260).