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General
States Energies Oxidation & Electrons Appearance & Characteristics Reactions Compounds Radius Conductivity Abundance & Isotopes |
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Meitnerium is radioactive. |
General:
| Name: Meitnerium | Symbol: Mt |
| Type: Transition Metal | Atomic weight: 266 |
| Density @ 293 K: g/cm3 | Atomic volume: cm3/mol |
| Discovered: Meitnerium was first synthesized by research scientists led by Peter Armbruster and Gottfried Münzenber at the Heavy Ion Research Laboratory in Darmstadt, Germany in 1982. They bombarded bismuth with accelerated iron nuclei. The element was named after physicist and mathematician Lise Meitner. | |
States
| State (s, l, g): solid | |
| Melting point: K ( oC) | Boiling point: K ( oC) |
Energies
| Specific heat capacity: J g-1 K-1 | Heat of atomization: kJ mol-1 |
| Heat of fusion: kJ mol-1 | Heat of vaporization : kJ mol-1 |
| 1st ionization energy: kJ mol-1 | 2nd ionization energy: kJ mol-1 |
| 3rd ionization energy: kJ mol-1 | Electron affinity: kJ mol-1 |
Oxidation & Electrons
| Shells: 2,8,18,32,32,15,2 | Electron configuration: [Rn] 5f14 6d7 7s2 |
| Minimum oxidation number: | Maximum oxidation number: |
| Min. common oxidation no.: | Max. common oxidation no.: |
| Electronegativity (Pauling Scale): | Polarizability volume: Å3 |
Appearance & Characteristics
| Structure: | Color: |
| Harmful effects: Meitnerium is harmful due to its radioactivity. | Hardness: mohs |
| Characteristics: Meitnerium is a synthetic, radioactive metal and has only been produced in tiny amounts. | |
| Uses: Meitnerium is of research interest only. | |
Reactions
| Reaction with air: | Reaction with 6 M HCl: |
| Reaction with 15 M HNO3: | Reaction with 6 M NaOH: |
Compounds
| Oxide(s): | Chloride(s): |
| Hydride(s): |
Radius
| Atomic radius: pm | Ionic radius (1+ ion): pm |
| Ionic radius (2+ ion): pm | Ionic radius (3+ ion): pm |
| Ionic radius (2- ion): pm | Ionic radius (1- ion): pm |
Conductivity
| Thermal conductivity: W m-1 K-1 | Electrical conductivity: x 106 S cm-1 |
Abundance & Isotopes
| Abundance earth's crust: nil | |
| Abundance solar system: parts per billion by weight, part per billion by moles | |
| Cost, pure: $ per 100g | |
| Cost, bulk: $ per 100g | |
| Source: Meitnerium is a synthetic radioactive metal, created via nuclear bombardment, and has only been produced in minute amounts. Meitnerium was produced by bombarding 209Bi with 58Fe which produced a single atom of the isotope 266Mt. | |
| Isotopes: Meitnerium has 2 isotopes whose half-lives are known, with mass numbers from 266 to 268. None are stable. The most stable isotope is 268Mt, with a half-life of 0.7 seconds. | |
