Holmium, 67 Ho Pabaosan (HOHL -mee-əm ) Cingakan petak pérak Bobot atom standar A r, std (Ho) 7002164930328000000♠ 164.930328 (7)[ 1]
Wilangan atom (Z ) 67 Watek n/a Période période 6 Blok blok-f Konpigurasi éléktron [Xé ] 4f11 6s2 Éléktron per kulit 2, 8, 18, 29, 8, 2 Pase ring STP padet Titik lebur 1734 K (1461 °C, 2662 °F) Titik didih 2873 K (2600 °C, 4712 °F) Kapadetan (nampek s.r. ) 8.79 g/cm3 ri kala éncéh (ring t.l. ) 8.34 g/cm3 Panes fusi 17.0 kJ/mol Panes panguapan 251 kJ/mol Kapasitas panes molar 27.15 J/(mol·K) Tekanan uap
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
1432
1584
(1775)
(2040)
(2410)
(2964)
Paindikan oksidasi 0,[ 2] +1, +2, +3 (oksida basa ) Kaéléktronégatipan skala Pauling: 1.23 Wasa ionisasi ka-1: 581.0 kJ/mol ka-2: 1140 kJ/mol ka-3: 2204 kJ/mol Jeriji atom émpiris: 176 pm Jeriji kovalén 192±7 pm Garis spéktral saking holmiumRupa alami primordial Struktur kristal susunan padat héksagon (hcp) Kagelisan swara pales tipis 2760 m/s (ring 20 °C) Ékspansi térmal poli: 11.2 µm/(m⋅K) (at s.r. ) Konduktivitas térmal 16.2 W/(m⋅K) Resistivitas listrik poli: 814 nΩ⋅m (at s.r. ) bacakan magnétik paramagnétik Modulus Young 64.8 GPa Modulus Shear 26.3 GPa Modulus Bulk 40.2 GPa Rasio Poisson 0.231 Kakatosan Vickers 410–600 MPa Kakatosan Brinell 500–1250 MPa Nomor CAS 7440-60-0 Panemuan Jacques-Louis Soret miwah Marc Delafontaine (1878)
Kategori:Holmium | pustaka
Ho:
ring
itung saking C
bina
parihindik
pus
C
1461
—
—
K
1734
1734
0
F
2662
2662
0
présisi maks
0
WD
1.734 1.734 Kelvin
dagingan
C: 1461, K: 1734, F: 2662
pabligbagan
Ho:
ring
itung saking C
bina
parihindik
pus
C
2600
—
—
K
2873
2870
3
delta
F
4712
4710
2
delta
présisi maks
0
WD
2.873 2.873 Kelvin
dagingan
C: 2600, K: 2873, F: 4712
pabligbagan
Pustaka
Pustaka pacang tampil ring suratan, menawi lis puniki wantah tampil ring kaca puniki.
↑ 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 .
↑ Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev . 22 : 17–24. doi :10.1039/CS9932200017 . and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry . 688 (1–2): 49–55. doi :10.1016/j.jorganchem.2003.08.028 .
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