Bohrium , including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth,conductivity and thermal properties are included.
Bohrium‘s is appearance is unknown. Little is known about the element and it has no known uses. Bohrium is a synthetic element and therefore is not naturally found in the environment.
Bohrium is a is a D-Block, Group 7, Period 7 element. The number of electrons in each of Bohrium‘s shells is 2, 8, 18, 32, 32, 13, 2 and its electronic configuration is [Rn] 5f146d5 7s2. In its elemental form Bohrium‘s CAS number is 54037-14-8.
Production of Bohrium was first announced in 1976 by scientists from the USSR and was verified in 1981 in Germany by Peter Armbruster.
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Abundance. The following table shows the abundance of Bohrium and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
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Isotope
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Atomic Mass
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% Abundance on Earth
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Bh-260
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260.1218
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-
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Bh-261
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261.1218
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-
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Bh-262
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262.12293 (45)
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-
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Bh-263
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263.1231
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-
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Bh-264
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264.1247
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-
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Bh-265
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265.1251
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-
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Bh-266
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266.1270
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-
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Bh-267
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267.1277
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-
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Bh-271
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271
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-
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Bh-272
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272
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-
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The following table shows the abundance of Bohrium present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
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Typical Human Body
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Universe
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by Weight
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-
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-
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by Atom
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-
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-
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Ionization Energy. The ionization energy for Bohrium (the least required energy to release a single electron from the atom in it‘s ground state in the gas phase) is stated in the following table:
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1st Ionization Energy
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660 kJ mol-1(est)
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2nd Ionization Energy
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kJ mol-1
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Conductivity. No data.
Thermal Properties. The melting point and boiling point for Bohrium are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
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Heat of Fusion
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No data
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Heat of Vaporization
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No data
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Heat of Atomization
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No data
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Formula
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Atomic Number
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Molecular Weight
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Electronegativity (Pauling)
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Density
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Melting Point
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Boiling Point
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Vanderwaals radius
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Ionic radius
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Energy of first ionization
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Bh
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107
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[ 264 ]
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660 kJ mol-1 (est)
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