Bohrium

Dari Wikipedia bahasa Indonesia, ensiklopedia bebas
Langsung ke: navigasi, cari

| colspan=2 style="text-align: center" | Artikel utama: Isotop dari bohrium

seaborgiumbohriumhasium
Re

Bh

(Ups)
Penampilan
tak diketahui
Ciri-ciri umum
Nama, lambang, Nomor atom bohrium, Bh, 107
Dibaca /ˈbɔəriəm/
Jenis unsur logam transisi
Golongan, periode, blok 77, d
Massa atom standar [270]
Konfigurasi elektron [Rn] 5f14 6d5 7s2
(calculated)[1]

2, 8, 18, 32, 32, 13, 2
(predicted)
Kulit elektron dari bohrium (2, 8, 18, 32, 32, 13, 2 (predicted))
Sifat fisika
Sifat atom
Bilangan oksidasi 7
Energi ionisasi pertama: 740 (extrapolated)[1] kJ·mol−1
ke-2: 1690 (extrapolated)[1] kJ·mol−1
ke-3: 2570 (extrapolated)[1] kJ·mol−1
Jari-jari kovalen 141 (estimated)[2] pm
Lain-lain
Nomor CAS 54037-14-8
Isotop paling stabil
iso NA Waktu paruh DM DE (MeV) DP
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[sunting | sunting sumber]

  1. ^ 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. 
  2. ^ Chemical Data. Bohrium - Bh, Royal Chemical Society
  3. ^ 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).)

Pranala luar[sunting | sunting sumber]