Gallium
Gallium, 31 Ga Pabaosan (GAL-ee-əm) Cingakan pelung pérak Bobot atom standar A r, std (Ga) 7001697230000000000♠ 69.723(1)[ 1]
Wilangan atom (Z ) 31 Watek golongan 13 (golongan boron) Période période 4 Blok blok-p Konpigurasi éléktron [Ar ] 3d10 4s2 4p1 Éléktron per kulit 2, 8, 18, 3 Pase ring STP padet Titik lebur 302.9146 K (29.7646 °C, 85.5763 °F) Titik didih 2673 K (2400 °C, 4352 °F)[ 2] Kapadetan (nampek s.r. ) 5.91 g/cm3 ri kala éncéh (ring t.l. ) 6.095 g/cm3 Panes fusi 5.59 kJ/mol Panes panguapan 256 kJ/mol[ 2] Kapasitas panes molar 25.86 J/(mol·K) Tekanan uap
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
1310
1448
1620
1838
2125
2518
Paindikan oksidasi −5, −4, −3,[ 3] −2, −1, 0, +1, +2, +3 [ 4] (oksida ampotér) Kaéléktronégatipan skala Pauling: 1.81 Wasa ionisasi ka-1: 578.8 kJ/mol ka-2: 1979.3 kJ/mol ka-3: 2963 kJ/mol (malih) Jeriji atom émpiris: 135 pm Jeriji kovalén 122±3 pm Jeriji Van der Waals 187 pm Garis spéktral saking gallium Rupa alami primordial Struktur kristal ortorombus Kagelisan swara pales tipis 2740 m/s (ring 20 °C) Ékspansi térmal 18 µm/(m⋅K) (ring 25 °C) Konduktivitas térmal 40.6 W/(m⋅K) Resistivitas listrik 270 nΩ⋅m (ring 20 °C) bacakan magnétik diamagnétik Karentanan magnétik molar 3004784000000000000♠ −21.6× 10−6 cm3 /mol (ring 290 K)[ 5] Modulus Young 9.8 GPa Rasio Poisson 0.47 Kakatosan Mohs 1.5 Kakatosan Brinell 56.8–68.7 MPa Nomor CAS 7440-55-3 Pangaranan mawit Gallia (Latin antuk: Prancis), umah genah pacundukan Pancawangan Dmitri Mendeleev (1871) Panemuan miwah isolasi kapertama Lecoq de Boisbaudran (1875)
Isotop
Kalimpahan
Paruh-idup (t 1/2 )
Mode paluruhan
Produk
66 Ga
syn
9.5 h
β+
66Zn
67 Ga
syn
3.3 d
ε
67Zn
68 Ga
syn
1.2 h
β+
68Zn
69 Ga
60.11%
tegteg
70 Ga
syn
21 min
β−
70Gé
ε
70Zn
71 Ga
39.89%
tegteg
72 Ga
syn
14.1 h
β−
72Gé
73 Ga
syn
4.9 h
β−
73Gé
Kategori:Gallium | pustaka
Gallium silih tunggil datu kimia antuk simbol Ga miwah wilangan atom 31. Datu gallium punika logam sané kalis miwah mawarna kapérakan ring suhu miwah tekanan standar; Manawi ring rupa éncéh nyané manados putih masawang pérak. Pinaka kaakéhan wasa kaicain, galium prasida lung konkoidali. Punika magenah ring seka 13 saking tabél périodik, miwah punika cecirén ipun sekadi logam liyanan saking waték punika, aluminium , indium , miwah thallium .
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 Zhang Y; Evans JRG; Zhang S (2011). "Corrected Values for Boiling Points and Enthalpies of Vaporization of Elements in Handbooks" . J. Chem. Eng. Data . 56 (2): 328–337. doi :10.1021/je1011086 .
↑ Ga(−3) has been observed in LaGa, see Dürr, Ines; Bauer, Britta; Röhr, Caroline (2011). "Lanthan-Triel/Tetrel-ide La(Al,Ga)x (Si,Ge)1-x . Experimentelle und theoretische Studien zur Stabilität intermetallischer 1:1-Phasen" (PDF) . Z. Naturforsch. (ring Jerman). 66b : 1107–1121.
↑ Hofmann, Patrick (1997). Colture. Ein Programm zur interaktiven Visualisierung von Festkörperstrukturen sowie Synthese, Struktur und Eigenschaften von binären und ternären Alkali- und Erdalkalimetallgalliden (PDF) (Thesis) (ring Jerman). PhD Thesis, ETH Zurich. p. 72. doi :10.3929/ethz-a-001859893 . hdl:20.500.11850/143357 . ISBN 978-3728125972 .
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics . Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4 .
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