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Template:Infobox bohrium

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Bohrium, 107Bh
Bohrium
Pronunciation/ˈbɔːriəm/ Audio file "Bohrium2009.ogg" not found ​(BOR-ee-əm)
Mass number[270] (data not decisive)[lower-alpha 1]
Bohrium in the periodic table
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Re
↑
Bh
↓
—
seaborgium ← bohrium → hassium
Atomic number (Z)107
Groupgroup 7
Periodperiod 7
Block  d-block
Electron configuration[Rn] 5f14 6d5 7s2[3][4]
Electrons per shell2, 8, 18, 32, 32, 13, 2
Physical properties
Phase at STPsolid (predicted)[5]
Density (near r.t.)26–27 g/cm3 (predicted)[6][7]
Atomic properties
Oxidation statescommon: (none)
(+3), (+4), (+5), (+7)[4]
Ionization energies
  • 1st: 740 kJ/mol
  • 2nd: 1690 kJ/mol
  • 3rd: 2570 kJ/mol
  • (more) (all but first estimated)[4]
Atomic radiusempirical: 128 pm (predicted)[4]
Covalent radius141 pm (estimated)[8]
Other properties
Natural occurrencesynthetic
Crystal structure ​hexagonal close-packed (hcp)
(predicted)[5]
CAS Number54037-14-8
History
Namingafter Niels Bohr
DiscoveryGesellschaft für Schwerionenforschung (1981)
Isotopes of bohrium
Main isotopes[9] Decay
abun­dance half-life (t1/2) mode pro­duct
267Bh synth 17 s α 263Db
270Bh synth 2.4 min α 266Db
271Bh synth 2.9 s[10] α 267Db
272Bh synth 8.8 s α 268Db
274Bh synth 57 s α 270Db
278Bh synth 11.5 min?[2] SF –
File:Symbol category class.svg Category: Bohrium
| references
child table, as reused in {IB-Bh}
Main isotopes of bohrium
Main isotopes[9] Decay
abun­dance half-life (t1/2) mode pro­duct
267Bh synth 17 s α 263Db
270Bh synth 2.4 min α 266Db
271Bh synth 2.9 s[10] α 267Db
272Bh synth 8.8 s α 268Db
274Bh synth 57 s α 270Db
278Bh synth 11.5 min?[2] SF –
Data sets read by {{Infobox element}}
Name and identifiers
Symbol etymology (11 non-trivial)
Top image (caption, alt) caption:

alt:
Pronunciation
Allotropes (overview)
Group (overview)
Period (overview)
Block (overview)
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Isotopes
Standard atomic weight
  most stable isotope
File:Notification-icon-Wikidata-logo.svg Wikidata
Wikidata *
* Not used in {{Infobox element}} (2023-01-01)
See also {{Index of data sets}} · Cat:data sets (0) · (this table:
)

Notes

  1. ↑ The most stable isotope of bohrium cannot be determined based on existing data due to uncertainty that arises from the low number of measurements. The half-life of 270Bh corresponding to two standard deviations is, based on existing data, 2.4+8.8
    −1.8     minutes[1], whereas that of 274Bh is 44+68
    −26     seconds; these measurements have overlapping confidence intervals. It is also possible that the unconfirmed 278Bh is more stable than both of these, with its half-life being 11.5 minutes.[2]

References

These references will appear in the article, but this list appears only on this page.
  1. ↑ Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  2. ↑ Jump up to: 2.0 2.1 2.2 Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
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  5. ↑ Jump up to: 5.0 5.1 Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  6. ↑ Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  7. ↑ Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  8. ↑ Chemical Data. Bohrium - Bh, Royal Chemical Society
  9. ↑ Jump up to: 9.0 9.1 Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  10. ↑ Jump up to: 10.0 10.1 Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).

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