Итербиум

70
Yb
Група
Нема одговор
Периода
6
блок
f
Protons
Electrons
Neutrons
70
70
103
Општи Својства
Атомски број
70
Атомска тежина
173,054
Mass Number
173
Category
Ланта­ноид
Color
Silver
Radioactive
Не
Ytterbium was named after Ytterby, a town in Sweden
Кристална структура
Face Centered Cubic
History
Ytterbium was discovered by the Swiss chemist Jean Charles Galissard de Marignac in the year 1878.

In 1907, in Paris, George Urbain separated ytterbia into two constituents.

Ytterbium metal was first made in 1937 by Klemm and Bonner by heating ytterbium chloride and potassium together.

A relatively pure sample of the metal was obtained only in 1953.
Electrons per shell
2, 8, 18, 32, 8, 2
Електронска конфигурација
[Xe] 4f14 6s2
Yb
Ytterbium is recovered commercially from monazite sand
Физички Својства
Фаза
Solid
Густина
6,965 g/cm3
Точка на топење
1097,15 K | 824 °C | 1515,2 °F
Точка на вриење
1469,15 K | 1196 °C | 2184,8 °F
Топлина на топење
7,7 kJ/mol
Топлина на испарување
160 kJ/mol
Specific Heat Capacity
0,155 J/g·K
Abundance in Earth's crust
0,00028%
Abundance in Universe
2×10-7%
Ultrapure
Кредити на слика: Images-of-elements
Ultrapure ytterbium
CAS Number
7440-64-4
PubChem CID Number
23992
Атомски Својства
Атомски полупречник
176 pm
Ковалентен полупречник
187 pm
Електронегативност
1,1 (Полингова скала)
Ionization Potential
6,2542 eV
Atomic Volume
24,79 cm3/mol
Thermal Conductivity
0,349 W/cm·K
Oxidation States
2, 3
Applications
Ytterbium fiber laser amplifiers are used in marking and engraving.

Ytterbium compounds are also used as catalysts in the organic chemical industry.

Ytterbium can be used as a dopant to help improve the grain refinement, strength, and other mechanical properties of stainless steel.
Ytterbium is considered to be moderately toxic
Isotopes
Stable Isotopes
168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176Yb
Unstable Isotopes
148Yb, 149Yb, 150Yb, 151Yb, 152Yb, 153Yb, 154Yb, 155Yb, 156Yb, 157Yb, 158Yb, 159Yb, 160Yb, 161Yb, 162Yb, 163Yb, 164Yb, 165Yb, 166Yb, 167Yb, 169Yb, 175Yb, 177Yb, 178Yb, 179Yb, 180Yb, 181Yb