#wikipedia.org. meitnerium. Meitnerium is a synthetic chemical element; it has symbol Mt and atomic number 109. It is an extremely radioactive synthetic element (an element not found in nature, but can be created in a laboratory). 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 o
#Business #Science #commodities market
Filter: #nil ×
Showing 1-1 of 1 item - Time: 0.1478 s. Memory: 13.3777 mb.