Rubidium silih tunggil datu kimia antuk simbol Rb and wilangan atom 37. Rubidium punika logam putih masawang pérak, sanget bélék ring seka logam alkali . Logam rubidium pateh sareng logam kalium miwah sésium ring cingakan pisik, kakatosan, miwah konduktivitas.[ 6] Rubidium tan prasida kasimpan ring metén oksigén atmospir, mawinan réaksi pinih éksotermik pacang kawéntenan, buinan prasida ngardi logam katunjel.[ 7]
Rubidium, 37 Rb Rubidium rubidiyum· Pabaosan (roo-BID -ee-əm ) Cingakan klau petak Bobot atom standar A r, std (Rb) 7001854678000000000♠ 85.4678(3)[ 1] Rubidium ring tabél périodik
Wilangan atom (Z ) 37 Watek golongan 1 (logam alkali) Période période 5 Blok blok-s Konpigurasi éléktron [Kr ] 5s1 Éléktron per kulit 2, 8, 18, 8, 1 Cecirén pisik Pase ring STP padet Titik lebur 312.45 K (39.30 °C, 102.74 °F) Titik didih 961 K (688 °C, 1270 °F) Kapadetan (nampek s.r. ) 1.532 g/cm3 ri kala éncéh (ring t.l. ) 1.46 g/cm3 Titik tripel 312.41 K, ? kPa[ 2] Titik kritis 2093 K, 16 MPa (kaékstrapolasi) [ 2] Panes fusi 2.19 kJ/mol Panes panguapan 69 kJ/mol Kapasitas panes molar 31.060 J/(mol·K) Tekanan uap
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
434
486
552
641
769
958
Cecirén atom Paindikan oksidasi −1, +1 (oksida basa kuat) Kaéléktronégatipan skala Pauling: 0.82 Wasa ionisasi ka-1: 403 kJ/mol ka-2: 2632.1 kJ/mol ka-3: 3859.4 kJ/mol Jeriji atom émpiris: 248 pm Jeriji kovalén 220±9 pm Jeriji Van der Waals 303 pm Garis spéktral saking rubidiumCecirén liyanan Rupa alami primordial Struktur kristal kubus mapusat badan (bcc) Kagelisan swara pales tipis 1300 m/s (ring 20 °C) Ékspansi térmal 90 µm/(m⋅K)[ 3] (at s.k. ) Konduktivitas térmal 58.2 W/(m⋅K) Resistivitas listrik 128 nΩ⋅m (ring 20 °C) bacakan magnétik paramagnétik [ 4] Karentanan magnétik molar 6995170000000000000♠ +17.0× 10−6 cm3 /mol (303 K)[ 5] Modulus Young 2.4 GPa Modulus Bulk 2.5 GPa Kakatosan Mohs 0.3 Kakatosan Brinell 0.216 MPa Nomor CAS 7440-17-7 Lelintihan Panemuan Robert Bunsen miwah Gustav Kirchhoff (1861) Isolasi kapertama George de Hevesy Isotop utama rubidium
Kategori:Rubidium | pustaka
↑ Méija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry . 88 (3): 265–91. doi :10.1515/pac-2015-0305 .
↑ 2,0 2,1 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (édisi ka-92nd). Boca Raton, FL: CRC Press . p. 4.122. ISBN 1439855110 .
↑ Cverna, Fran (2002). "Ch. 2 Thermal Expansion". ASM Ready Reference: Thermal properties of metals (PDF) . ASM International. ISBN 978-0-87170-768-0 .
↑ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (édisi ka-86th). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5 .
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics . Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4 .
↑ "Electrical conductivity of the Elements" . Kaaksés 2019-04-17 . Rubidium Conuctivity
↑ "Reactions of Group 1 Elements with Oxygen" . 2013-10-03. Kaaksés 2019-04-17 . Rubidium & Cesium/ Reactions with Oxygen