Ununhexium
Ununhexium General
| Name:Ununhexium | Symbol:Uuh |
| Type:Other Metal (presumed) | Atomic weight:293 |
| Density @ 293 K:g/cm3 | Atomic volume:cm3/mol |
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Discovered:
Ununhexium was first made by research scientists at the Joint Institute for Nuclear Research in Dubna, Russia in 2000. Scientists reacted curium with calcium ions. Ununhexium (Uuh) is a temporary element name until it is given an official name by The International Union of Pure and Applied Chemistry (IUPAC). As a result of its position in the periodic table ununhexium is expected to be classed as one of the "other metals" or to have simalar properties to the metalloid polonium. Too little of the element has been synthesized for this to be confirmed. |
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Ununhexium States
| State (s, l, g): solid | |
| Melting point:K ( °C) | Boiling point:K ( °C) |
Ununhexium 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 |
Ununhexium Oxidation & Electrons
| Shells:2, 8, 18, 32, 32, 18, 6 | Electron configuration:[Rn] 5f14 6d10 7s2 7p4 |
| Minimum oxidation number: | Maximum oxidation number: |
| Min. common oxidation no.: | Max. common oxidation no.: |
| Electronegativity (Pauling Scale): | Polarizability volume:Å3 |
Ununhexium Appearance & Characteristics
| Structure: | Color: |
| Hardness:mohs | |
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Harmful effects:
Ununhexium is harmful due to its radioactivity. |
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Characteristics:
Ununhexium is a synthetic radioactive metal and has only been produced in minute amounts. Uses: Ununhexium is of research interest only. |
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Ununhexium Reactions
| Reaction with air: | Reaction with 6 M HCl: |
| Reaction with 15 M HNO3: | Reaction with 6 M NaOH: |
Ununhexium Compounds
| Oxide(s): | Chloride(s): |
| Hydride(s): |
Ununhexium 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 |
Ununhexium Conductivity
| Thermal conductivity:W m-1 K-1 | Electrical conductivity:x 106 S cm-1 |
Ununhexium 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 | |
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Source:
Ununhexium is a synthetic radioactive metal, created via nuclear bombardment, and has only been produced in minute amounts. Ununhexium is produced by reacting 248Cm with 48Ca . |
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Isotopes:
Ununhexium has 4 isotopes whose half-lives are known, with mass numbers from 290 to 293. None are stable. The most stable isotope is 293Uuh, with a half-life of 61 milliseconds. |
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Ununhexium Other
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Other:
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