Meitnerium Mt

Meisenheimer s rearrangement, 2 466 Meissner diamagnetic current, 23 813 Meissner effect, 23 802—803 Meissner process, 77 163-164 Meitnerium (Mt), 7 492t MEK (methyl ethyl ketone) dehydration, 78 515... 

The modern Periodic Table of elements. The numbers indicate the atomic number of each element the number of protons its nucleus contains. Some superheavy elements beyond meitnerium (Mt) have been observed but not yet named... 

The transuranium elements are the elements following uranium in the periodic table. The elements from rutherfordium (Rf, Z = 104) through meitnerium (Mt, Z = 109) were formally named in 1997. The transmeitnerium elements, the elements beyond meitnerium (including hypothetical nuclides that have not yet been made), are named systematically, at least until they have been identified and there is international agreement on a permanent name. The systematic nomenclature uses the terms in Table 17.2. For example, the element with Z = 111, one atom of which was first made in 1994, will be called unununium, Uuu, until it is finally named. 

Meitnerium Mt 109 RArmbruster.G.Munzenber Darmstadt,Germany From "Meitner", the Austrian physicist... 

At this time, to name an element a researcher or team of researchers must be certified by lUPAC as the discoverers of that element, at which time they are free to name the compound. The elements 104-109 were subject to a naming controversy. The originally proposed names of these elements by lUPAC were, in order, dub-nium, joliotium, rutherfordium, bohrium, hahnium, and meiterium. The names which appear on the current periodic table are, in order, rutherfordium (Rf), dubnium (Db), seaborgium, bohrium (Bh), hassium (Hs), and meitnerium (Mt). 

Meitnerium (Mt) Named after Austrian physicist Lise Meitner (1878-1968), who helped explain the process of nuclear fission (the splitting of atoms)... 

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