Mt
Meitnerium
Element 109 · 277.154 u
Unknown Properties
d-block
Periode 7
Group 9
Solied by RT
Radioaktief
t½ 7.6 seconds
SintetikName
Dag lengte: →
Meitnerium is named after Lise Meitner, who co-discovered nuclear fission.
Fisiese eienskappe
| Atomic Mass | 277.154 u |
| Density | 37.4 g/cm³ |
| Appearance | Metallic (predicted) |
| Toestand by kamerkomp | Solied |
Chemical Properties
| Oxidation States | +1, +3, +6, +9 |
Atomic Properties
| Electron Configuration | [Rn] 5f14 6d7 7s2 |
Discovery
| Discovered By | Peter Armbruster, Gottfried Munzenberg and others |
| Discovery Year | 1982 |
| Location | Darmstadt, Germany |
| Genoemde Na | Named after Lise Meitner, co-discoverer of nuclear fission |
About Meitnerium
Meitnerium is a synthetic, extremely radioactive element expected to be similar to iridium. Only a few atoms have ever been produced.
Gebruiks & Programme
No practical applications. Scientific research only.
Fun Fact
Lise Meitner was overlooked for the Nobel Prize despite co-discovering nuclear fission -- one of the most notable snubs in Nobel history.
Isotopes
| Definieer Molekulêr Gewigte | Abundance | Half-Life | Stabiel |
| 276 | - | 0.72 seconds | Nee |
| 278 | - | 7.6 seconds | Nee |
Electron Configuration
[Rn] 5f14 6d7 7s2