#meitnerium
Meitnerium
Chemical element with atomic number 109 (Mt)
Meitnerium is a synthetic chemical element; it has symbol Mt and atomic number 109. It is named after Lise Meitner and is an extremely radioactive synthetic element. The most stable known isotope, meitnerium-278, has a half-life of 4.5 seconds, although the unconfirmed meitnerium-282 may have a longer half-life of 67 seconds. The GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany, first created this element in 1982.
Wed 21st
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