Materials Home
Pure Elements
Periodic Table
Element List
  by Name
  by Symbol
  by Atomic Number
  by Atomic Weight
Element Information
Resources
Bibliography
Laser Focus World

Semiconductors, medical equipment, lasers, optics and aviation and aerospace.

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Reinforced Plastics

Informed and impartial coverage on the global composites industry.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

more free magazines
Promethium
61
Pm
[145]
Atomic Number 61
Atomic Weight [145]
Electron Config. 2-2-6-2-6-10-2-6-10-5-2-6-0-0-2
Electron configuration order: 1s-2s-2p-3s-3p-3d-4s-4p-4d-4f-5s-5p-5d-5f-6s-6p-6d-7s

Mechanical Properties Conditions
Phase Temp. (K) Pressure (Pa)
Density 7260 kg/m3 Solid  298.15 
Poisson Ratio 0.28 Solid     
Thermal Expansion Coefficient 1.100 /K Solid  298.15  

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature 1315.15 K   101325 
Boiling Temperature 3273.15 K   101325 
Thermal Conductivity 15 W/m-K 300 101325 
 
Glossary