The chemical element hassium is classed as a transition metal. It was discovered in 1984 by a team led by Peter Armbruster and Gottfried Münzenber.
|Classification:||Hassium is a transition metal|
|Atomic weight:||(269), no stable isotopes|
|Neutrons in most abundant isotope:||161|
|Electron configuration:||5f14 6d6 7s2|
|Density @ 20oC:|
Reactions, Compounds, Radii, Conductivities
|Specific heat capacity||–|
|Heat of fusion||–|
|Heat of atomization||–|
|Heat of vaporization||–|
|1st ionization energy||–|
|2nd ionization energy||–|
|3rd ionization energy||–|
|Minimum oxidation number||–|
|Min. common oxidation no.||–|
|Maximum oxidation number||–|
|Max. common oxidation no.||–|
|Electronegativity (Pauling Scale)||–|
|Reaction with air||–|
|Reaction with 15 M HNO3||–|
|Reaction with 6 M HCl||–|
|Reaction with 6 M NaOH||–|
|Ionic radius (1+ ion)||–|
|Ionic radius (2+ ion)||–|
|Ionic radius (3+ ion)||–|
|Ionic radius (1- ion)||–|
|Ionic radius (2- ion)||–|
|Ionic radius (3- ion)||–|
Discovery of Hassium
Hassium was first made by a team led by Peter Armbruster and Gottfried Münzenber at the Heavy Ion Research Laboratory in Darmstadt, Germany in 1984.
They bombarded lead-208 with iron-58 nuclei to produce three atoms of hassium.
The name hassium is derived from the Latin name for the German state of Hesse.
Appearance and Characteristics
Hassium is harmful due to its radioactivity.
Hassium is a synthetic, radioactive metal and has only been produced in tiny amounts.
Uses of Hassium
Hassium is of research interest only.
Abundance and Isotopes
Abundance earth’s crust: nil
Abundance solar system: parts per billion by weight, parts per trillion by moles
Cost, pure: $ per 100g
Cost, bulk: $ per 100g
Source: Hassium is a synthetic, radioactive metal, created via nuclear bombardment. It has only been produced in minute amounts. Hassium is produced by bombarding 208Pb with 58Fe.
Isotopes: Hassium has 12 isotopes whose half-lives are known, with mass numbers from 263 to 277. None are stable. The most stable isotope is 269Hs, with a half-life of 9.7 seconds.
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