Mt
109unknown, probably transition metalGenerated with AI1 min read
Meitnerium
SymbolMt
Atomic Mass278
Meitnerium is a chemical element with symbol Mt and atomic number 109. It is an extremely radioactive synthetic element (an element not found in nature that can be created in a laboratory). The most stable known isotope, meitnerium-278, has a half-life of 7.6 seconds.
Properties
- Phase: Solid
- Density: 37.4 g/cm³
- Melting Point: null K
- Boiling Point: null K