
Bohrium (Bh) is a chemical element of the periodic table, located in the group 7 and the period 7, and has the atomic number 107. It is a silvery-white transition metal, which is named after the Danish physicist, Niels Bohr. It is a transuranium element and is counted as one of the radioactive elements.
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– d block |
FAQs on Bohrium Element
Bohrium |
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‣ Who discovered bohrium? When was bohrium discovered? Discovery: Gesellschaft für Schwerionenforschung (1981) |
‣ Where is bohrium on the periodic table?![]() Location: Bohrium is found in the seventh column of the periodic table, next to the seaborgium element. |
‣ What is the atomic number of bohrium? Atomic number (Z): 107 |
‣ What is bohrium symbol? Symbol: Bh |
‣ What is the atomic weight for bohrium? Standard atomic weight: [270] (unconfirmed: 278) |
‣ What block is bohrium in the periodic table? Block: d-block |
‣ What group is bohrium in the periodic table? Group: 7 |
‣ Period of bohrium in the periodic table Period: 7 |
‣ Bohrium atomic radius: empirical: 128 pm (predicted) |
‣ Bohrium covalent radius: 141 pm (estimated) |
‣ How many electron shells does bohrium have? Electrons per shell: 2, 8, 18, 32, 32, 13, 2 |
‣ What is the electron configuration of bohrium? Electron configuration: [Rn] 5f14 6d5 7s2 |
‣ Bohrium ionization energies: 1st: 740 kJ/mol 2nd: 1690 kJ/mol 3rd: 2570 kJ/mol |
‣ Bohrium phase of matter at room temperature Phase (at r.t): unknown phase (predicted) |
‣ Bohrium density (near r.t): 26-27 g/cm3 (predicted) |
‣ Bohrium natural occurrence: synthetic |
‣ Bohrium oxidation state: +3, +4, +5, +7 |
‣ What is the crystal structure of bohrium? Crystal structure: hexagonal close-packed (hcp) (predicted) |
‣ Bohrium CAS number: 54037-14-8 |
‣ How many isotopes does bohrium have?
Main isotopes of bohrium | ||||
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Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
267Bh | syn | 17 s | α | 263Db |
270Bh | syn | 1 min | α | 266Db |
271Bh | syn | 1.5 s | α | 267Db |
272Bh | syn | 11 s | α | 268Db |
274Bh | syn | 44 s | α | 270Db |
278Bh | syn | 11.5 min? | SF |
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