Bohrium | | Penampilan |
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| tak diketahui | | Ciri-ciri umum |
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| Nama, lambang, Nomor atom | bohrium, Bh, 107 |
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| Dibaca | /ˈbɔəriəm/ |
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| Jenis unsur | logam transisi |
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| Golongan, periode, blok | 7, 7, d |
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| Massa atom standar | [270] |
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| Konfigurasi elektron | [Rn] 5f14 6d5 7s2
(calculated)[1]
2, 8, 18, 32, 32, 13, 2
(predicted) |
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| Sifat fisika |
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| Sifat atom |
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| Bilangan oksidasi | 7 |
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| Energi ionisasi | pertama: 740 (extrapolated)[1] kJ·mol−1 |
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| ke-2: 1690 (extrapolated)[1] kJ·mol−1 | | ke-3: 2570 (extrapolated)[1] kJ·mol−1 | | Jari-jari kovalen | 141 (estimated)[2] pm |
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| Lain-lain |
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| Nomor CAS | 54037-14-8 |
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| Isotop paling stabil |
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| Artikel utama: Isotop dari bohrium | | iso | NA | Waktu paruh | DM | DE (MeV) | DP |
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| 274Bh | syn | ~54 s[3] | α | 8.8 | 270Db | | 272Bh | syn | 9.8 s | α | 9.02 | 268Db | | 271Bh | syn | | α | | 267Db | | 270Bh | syn | 61 s | α | 8.93 | 266Db | | 267Bh | syn | 17 s | α | 8.83 | 263Db | | only half-times of over a second are included here |
| | · r |
Bohrium (pengucapan /ˈbɔəriəm/) adalah unsur kimia sintetik dalam sistem periodik unsur yang memiliki lambang Bh dan nomor atom 107. Referensi- ^ a b c d Johnson, E.; Fricke, B.; Jacob, T.; Dong, C. Z.; Fritzsche, S.; Pershina, V. (2002). "Ionization potentials and radii of neutral and ionized species of elements 107 (bohrium) and 108 (hassium) from extended multiconfiguration Dirac–Fock calculations". The Journal of Chemical Physics 116: 1862. Bibcode:2002JChPh.116.1862J. doi:10.1063/1.1430256.
- ^ Chemical Data. Bohrium - Bh, Royal Chemical Society
- ^ Oganessian, Yu. Ts.; Abdullin, F. Sh.; Bailey, P. D.; Benker, D. E.; Bennett, M. E.; Dmitriev, S. N.; Ezold, J. G.; Hamilton, J. H. et al. (2010). "Synthesis of a New Element with Atomic Number Z=117". Physical Review Letters 104. Bibcode:2010PhRvL.104n2502O. doi:10.1103/PhysRevLett.104.142502. PMID 20481935. (gives life-time of 1.3 min based on a single event; conversion to half-life is done by multiplying with ln(2).)
Sumber :
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