70Yb173.045
Lanthanidef-block
Ytterbium
Element 70 on the periodic table, symbol Yb, group 3, period 6.
Ytterbium is a chemical element with symbol Yb and atomic number 70. It is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. However, like the other lanthanides, its most common oxidation state is +3, seen in its oxide, halides and other compounds.
Properties
- Atomic Number
- 70
- Atomic Mass
- 173.0451 u
- Group
- 3
- Period
- 6
- Block
- f-block
- Category
- Lanthanide
- State at 25 °C
- Solid
- Melting Point
- 1,097 K · 823.9 °C
- Boiling Point
- 1,469 K · 1,195.9 °C
- Density
- 6.9 g/cm³
- Atomic Radius
- 175 pm
- Electronegativity
- 1.1
- Oxidation States
- +2, +3
- Abundance in Crust
- 3.2 mg/kg
- Discovered
- 1878
- Discovered By
- Jean Charles Galissard de Marignac
Electron Configuration
[Xe] 4f14 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14
Ionisation Energies (kJ/mol)
- 1. 603.4
- 2. 1,174.8
- 3. 2,417
- 4. 4,203
Elements near Ytterbium
Elements in the same group share the number of outer electrons and behave in similar ways. Elements in the same period share a shell, so they change steadily from left to right.