Bohrium

Bohrium Navigation

Other Elements

By Name

By Symbol

By Number

Solutions manuals and the Numerari scientific calculator from KnowledgeDoor Learn more about our solutions manuals Learn
more about Numerari

Quantity

Bohrium Quick Reference

Click button to see citations

Notes

Symbol

Bh

Atomic Number

107

Oxidation States

7

predicted

6

predicted

5

predicted

4

predicted

3

predicted

Electron Configuration

Orbital Occupancy

[Rn] 5f14 6d5 7s2

[Rn] represents the closed-shell electron configuration of radon

Orbital Filling Order

[Rn] 7s2 5f14 6d5

[Rn] represents the closed-shell electron configuration of radon

Term Symbol

6S5/2

see expanded configuration ...

Ionization Energies

I (1)

6.9 eV

Pyykkö Covalent Radius

single bond

141 pm

double bond

128 pm

triple bond

119 pm

Quantity

Bohrium Atomic Structure

Notes

Ionization Energies

I (1)

6.9 eV

Electron Configuration

Orbital Occupancy

[Rn] 5f14 6d5 7s2

[Rn] represents the closed-shell electron configuration of radon

Orbital Filling Order

[Rn] 7s2 5f14 6d5

[Rn] represents the closed-shell electron configuration of radon

Term Symbol

6S5/2

see expanded configuration ...

Fluorescence Yields

ωK

0.973

ωL1

0.320

ωL2

0.573

ωL3

0.630

Coster-Kronig Yields

F13

0.50 

F23

0.171

Quantity

Bohrium Atomic Interaction

Notes

Oxidation States

7

predicted

6

predicted

5

predicted

4

predicted

3

predicted

Quantity

Bohrium Identification

Notes

CAS Number

54037-14-8

Quantity

Bohrium Atomic Size

Notes

Pyykkö Covalent Radius

single bond

141 pm

double bond

128 pm

triple bond

119 pm

Quantity

Bohrium History

Notes

Discovery

date of discovery

1981

discoverer

G. Münzenberg

discoverer

S. Hofmann

discoverer

F. P. Heßberger

discoverer

W. Reisdorf

discoverer

K.-H. Schmidt

discoverer

J. H. R. Schneider

discoverer

P. Armbruster

discoverer

C.-C. Sahm

discoverer

B. Thuma

location of discovery

Gesellschaft für Schwerionenforschung mbH (GSI), Darmstadt, Germany

Origin of Element Name

origin

Niels Bohr

origin description

person—Danish physicist who won the 1922 Nobel Prize in Physics

Origin of Element Symbol

symbol: Bh

origin

bohrium

origin description

element name

Formerly Used or Proposed Element Names and Symbols

name

nielsbohrium

matching symbol

Ns

name

unnilseptium

matching symbol

Uns

name

eka-rhenium

no matching symbol specified

Quantity

Bohrium Nomenclature

Notes

Element Names in Other Languages

French

bohrium

German

Bohrium

Italian

bohrio

Spanish

bohrio

Portuguese

bóhrio

Anions or Anionic Substituent Groups

bohride

Cations or Cationic Substituent Groups

bohrium

Ligands

bohrido

Heteroatomic Anion

bohrate

'a' Term—Substitutive Nomenclature

bohra

'y' Term—Chains and Rings Nomenclature

bohry

References    (Click the button next to a value above to see complete citation information for that entry)

Connelly, Neil G., Ture Damhus, Richard M. Hartshorn, and Alan T. Hutton. Nomenclature of Inorganic Chemistry: IUPAC Recommendations 2005. Cambridge: RSC Publishing, 2005.

Emsley, John. Nature's Building Blocks: An A-Z Guide to the Elements. Oxford: Oxford University Press, 2003.

Emsley, John. The Elements, 3rd edition. Oxford: Oxford University Press, 1998.

Firestone, Richard B. Table of Isotopes, 8th edition, volume 2. Edited by Virginia S. Shirley, with assistant editors Coral M. Baglin, S. Y. Frank Chu, and Jean Zipkin. New York: John Wiley & Sons, Inc., 1996.

Hoffman, Darleane C., Albert Ghiorso, and Glenn T. Seaborg. The Transuranium People: The Inside Story. London, England: Imperial College Press, 2000.

Hofmann, S., V. Ninov, F. P. Heßberger, P. Armbruster, H. Folger, G. Münzenberg, H. J. Schött, A. G. Popeko, A. V. Yeremin, A. N. Andreyev, S. Saro, R. Janik, and M. Leino. "Production and Decay of 269110." Zeitschrift für Physik A Hadrons and Nuclei, volume 350, number 4, 1995, pp. 277–280. doi:10.1007/BF01291181

Hofmann, S., V. Ninov, F. P. Heßberger, P. Armbruster, H. Folger, G. Münzenberg, H. J. Schött, A. G. Popeko, A. V. Yeremin, A. N. Andreyev, S. Saro, R. Janik, and M. Leino. "The New Element 111." Zeitschrift für Physik A Hadrons and Nuclei, volume 350, number 4, 1995, pp. 281–282. doi:10.1007/BF01291182

Hofmann, S., V. Ninov, F. P. Heßberger, P. Armbruster, H. Folger, G. Münzenberg, H. J. Schött, A. G. Popeko, A. V. Yeremin, S. Saro, R. Janik, and M. Leino. "The New Element 112." Zeitschrift für Physik A Hadrons and Nuclei, volume 354, number 3, 1996, pp. 229–230. doi:10.1007/s002180050036

Keller, Jr., O. Lewin, and Glenn T. Seaborg. "Chemistry of the Transactinide Elements." pp. 139–166 in Annual Review Of Nuclear Science. Edited by Emilio Segre. Palo Alto, California: Annual Reviews Inc., 1977.

Krause, M. O. "Atomic Radiative and Radiationless Yields for K and L Shells." Journal of Physical and Chemical Reference Data, volume 8, number 2, 1979, pp. 307–327.

Miessler, Gary L., and Donald A. Tarr. Inorganic Chemistry, 3rd edition. Upper Saddle River, NJ: Pearson Prentice Hall, 2004.

Münzenberg, G., P. Armbruster, F. P. Heßberger, S. Hofmann, K. Poppensieker, W. Reisdorf, J. H. R. Schneider, W. F. W. Schneider, K.-H. Schmidt, C.-C. Sahm, and D. Vermeulen. "Observation of One Correlated α-Decay in the Reaction 58Fe on 209Bi → 267109." Zeitschrift für Physik A Hadrons and Nuclei, volume 309, number 1, 1982, pp. 89–90. doi:10.1007/BF01420157

Münzenberg, G., P. Armbruster, H. Folger, F. P. Heßberger, S. Hofmann, J. Keller, K. Poppensieker, W. Reisdorf, K.-H. Schmidt, H.-J. Schött, M. E. Leino, and R. Hingmann. "The Identification of Element 108." Zeitschrift für Physik A Hadrons and Nuclei, volume 317, number 2, 1984, pp. 235–236. doi:10.1007/BF01421260

Münzenberg, G., S. Hofmann, F. P. Heßberger, W. Reisdorf, K. H. Schmidt, J. H. R. Schneider, P. Armbruster, C. C. Sahm, and B. Thuma. "Identification of Element 107 by α Correlation Chains." Zeitschrift für Physik A Hadrons and Nuclei, volume 300, number 1, 1981, pp. 107–108. doi:10.1007/BF01412623

Pekka Pyykkö. Self-Consistent, Year-2009 Covalent Radii. http://www.chem.helsinki.fi/~pyykko/Radii09.pdf. Accessed on November 20, 2010.

Pyykkö, Pekka, and Michiko Atsumi. "Molecular Double-Bond Covalent Radii for Elements Li-E112." Chemistry - A European Journal, volume 15, number 46, 2009, pp. 12770–12779. doi:10.1002/chem.200901472

Pyykkö, Pekka, and Michiko Atsumi. "Molecular Single-Bond Covalent Radii for Elements 1-118." Chemistry - A European Journal, volume 15, number 1, 2009, pp. 186–197. doi:10.1002/chem.200800987

Pyykkö, Pekka, Sebastian Riedel, and Michael Patzschke. "Triple-Bond Covalent Radii." Chemistry - A European Journal, volume 11, number 12, 2005, pp. 3511–3520. doi:10.1002/chem.200401299

Seaborg, Glenn T., and Walter D. Loveland. The Elements Beyond Uranium. New York: John Wiley & Sons, Inc., 1990.

Soukhanov, Anne H., editor. The American Heritage Dictionary Of The English Language, 3rd edition. Boston: Houghton Mifflin Company, 1992.

Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. Houston, TX: Gulf Publishing Company, 2005.