| Property | Value |
|---|---|
| Atomic number | 109 |
| Atomic weight | 278 amu |
| Element family | Transition metals |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | None |
| Previous element | Hassium |
| Next element | Darmstadtium |
| Density | 28 g/cm3 (STP) |
| Discovery year | 1982 |
Meitnerium is an element number 109 from transition metals family. Its symbol is Mt. Meitnerium atomic weight is 278 amu. Mt has no stable or long lived isotopes. Meitnerium electronic configuration is 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p65f146d77s2. Meitnerium density is 28 g/cm3 (STP). Meitnerium was discovered in 1982.
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