| Ytterbium |
|---|
70Yb |
|
| Panagway |
|---|
silvery white
 |
| Kinatibuk-ang mga kinaiya |
|---|
| Ngalan,simbolo,kaiphan | ytterbium, Yb, 70 |
|---|
| Paglitok | /ᵻˈtɜːrbiəm/[[Help:Pronunciation respelling key|i-Plantilya:Smallcaps all-bee-əm]] |
|---|
| Kategoriyang elemento | puthaw nga lantanido |
|---|
| Group,period,block | [[group {{{group}}} element|{{{group}}}]], 6,f |
|---|
| Gibug-aton sa atomo | 173.054(5) |
|---|
| Kontorno sa elektron | [Xe] 4f14 6s2
2, 8, 18, 32, 8, 2 Electron shells of ytterbium (2, 8, 18, 32, 8, 2) |
|---|
| History |
|---|
| Pagkadiskobre | Jean Charles Galissard de Marignac (1878) |
|---|
| First isolation | Georges Urbain (1907) |
|---|
| Physical properties |
|---|
| Phase | magahi |
|---|
| Density (nearr.t.) | 6.90 g·cm−3 |
|---|
| Liquiddensity atm.p. | 6.21 g·cm−3 |
|---|
| Melting point | 1097 K, 824 °C, 1515 °F |
|---|
| Boiling point | 1469 K, 1196 °C, 2185 °F |
|---|
| Heat of fusion | 7.66kJ·mol−1 |
|---|
| Heat of vaporization | 159 kJ·mol−1 |
|---|
| Molar heat capacity | 26.74 J·mol−1·K−1 |
|---|
| Vapor pressure |
|---|
| P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k | | at T (K) | 736 | 813 | 910 | 1047 | (1266) | (1465) |
|
| Atomic properties |
|---|
| Oxidation states | 3, 2, 1
(basic oxide) |
|---|
| Electronegativity | ? 1.1 (Pauling scale) |
|---|
| Ionization energies | 1st: 603.4 kJ·mol−1 |
|---|
| 2nd: 1174.8 kJ·mol−1 |
| 3rd: 2417 kJ·mol−1 |
| Atomic radius | 176pm |
|---|
| Covalent radius | 187±8 pm |
|---|
| Miscellanea |
|---|
| Crystal structure | face-centered cubic |
|---|
| Magnetic ordering | paramagnetic |
|---|
| Electrical resistivity | (r.t.) (β, poly) 0.250 µΩ·m |
|---|
| Thermal conductivity | 38.5 W·m−1·K−1 |
|---|
| Thermal expansion | (r.t.) (β, poly) 26.3 µm/(m·K) |
|---|
| Speed of sound (thin rod) | (20 °C) 1590 m·s−1 |
|---|
| Young's modulus | (β form) 23.9 GPa |
|---|
| Shear modulus | (β form) 9.9 GPa |
|---|
| Bulk modulus | (β form) 30.5 GPa |
|---|
| Poisson ratio | (β form) 0.207 |
|---|
| Vickers hardness | 206 MPa |
|---|
| Brinell hardness | 343 MPa |
|---|
| CAS registry number | 7440-64-4 |
|---|
| Most stable isotopes |
|---|
| Main article:Isotopes of ytterbium |
|
| ·r |
