Periodic Table

Terbium

Atomic Number: 65

 
Overview
PropertyValueUnits

Atomic Mass

158.9253

Density

8.219

g/cckg/m3lb/in3
Thermal Properties

Thermal Properties

PropertyValueUnits

Melting Point

1360°C

K°C°F°R

Boiling Point

3041°C

K°C°F°R

Critical Pressure

The critical pressure has not been determined for Terbium

Critical Temperature

The critical temperature has not been determined for Terbium

Heat of Fusion

10.8 kJ/mol

kJ/molcal/mol

Heat of Vaporization

295 kJ/mol

kJ/molcal/mol

Specific Heat

182 J/kg·K

J/kg·K

Thermal Conductivity

11 W/m·K

W/m·K
Electon Configuration

Electron Structure

[Xe] 4f9 6s2

Shell Arrangement

KLMNOPQ
281827820
LevelS OrbitalP OrbitalD OrbitalF Orbital
Level 1
Level 2
History

Year Discovered

1843

Isotopes
IsotopeCommon NameSymbolMassStatusAbundanceHalf-lifeDecay modeDecay EnergyNuclear SpinMagnetic Moment

65

Tb

159

TerbiumTb159Stable100-----

Isotopic mass data for stable isotopes is from:
G. Audi, A.H. Wapstra in Nuclear Physics A, 1993, 565, 1-65
and
G. Audi, A.H.Wapstra in Nuclear Physics A, 1995, 595 409-480.

Natural abundance data is from:
K.J.R. Rosman, P.D.P. Taylor in Pure Appplied Chemistry, 1999, 71, 1593-1607.

 

Occurance
In the Universe0.00000005%
In the Sun0.00000001%
In Meteorites0.0000039%
In the Earth's Crust0.000093%
In Seawater1.4E-11%
In the Human Body0%
Models

Pictures, videos and 3D models of the element

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