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 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance


Name: Ytterbium Symbol: Yb
Group: Rare Earth, Lanthanides Atomic weight: 173.04
Density @ 293 K: 6.98 g/cm3 Atomic volume: 24.79 cm3/mol
Group: Rare Earth, Lanthanides discovered: 1879


state (s, l, g): s
melting point: 1097.2 K boiling point: 1700 K
Heat of fusion: 7.660 kJ/mol Heat of vaporization: 128.90 kJ/mol


1st ionization energy: 603.4 kJ/mole
electronegativity: 1.21 2nd ionization energy: 1176 kJ/mole
electron affinity: 50 kJ/mole 3rd ionization energy: 2415 kJ/mole
Specific heat: 0.15 J/gK heat atomization: 152 kJ/mole atoms

Oxidation & Electrons:

Shells: 2,8,18,32,8,2 electron configuration: [Xe] 4f14 6s2
minimum oxidation number: 0 maximum oxidation number: 3
min. common oxidation no.: 0 max. common oxidation no.: 3

Appearance & Characteristics:

structure: fcc: face-centered cubic color: silvery-white
uses: alloys toxicity:
hardness: mohs characteristics: soft


reaction with air: vigorous, =>Yb2O3
reaction with 6M HCl: mild, =>H2, YbCl3 reaction with 6M HCl: mild, =>H2, YbCl3
reaction with 15M HNO3: mild, =>Yb(NO3)3 reaction with 6M NaOH:

Other Forms:

number of isotopes: 7 hydride(s): YbH2 Yb2H5
oxide(s): Yb2O3 chloride(s): YbCl2 YbCl3


ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: 193 pm ionic radius (1+ ion): pm
ionic radius (2+ ion): 116 pm ionic radius (3+ ion): 100.8 pm


thermal conductivity: 34.9 J/m-sec-deg
electrical conductivity: 35.7 1/mohm-cm polarizability: 21 A^3


source: Monazite(phosphate),bastnaesite
rel. abund. solar system: -0.606 log abundance earth's crust: 0.5 log
cost, pure: 530 $/100g cost, bulk: $/100g