Materials Home
Pure Elements
Periodic Table
Element List
  by Name
  by Symbol
  by Atomic Number
  by Atomic Weight
Element Information
Resources
Bibliography
Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Chemical Engineering

The industry gateway for chemical engineering and plant operations.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

World Pumps

Major news, innovation and real-life applications for pumps and ancillary equipment.

more free magazines
Selenium
34
Se
78.96
Atomic Number 34
Atomic Weight 78.96
Electron Config. 2-2-6-2-6-10-2-4
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 4800 kg/m3 Solid  0 
Modulus of Elasticity 55.158 GPa Solid  0   
Poisson Ratio 0.33 Solid     
Thermal Expansion Coefficient 3.700 /K Solid  293.15  

Electrical Properties Conditions
Temp. (K) Note
Electrical Resistivity 1.200 W-m 273.15  

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature 494.15 K   101325 
Boiling Temperature 958.15 K   101325 
Critical Temperature 1766.15 K    
Fusion Enthalpy 66.2 J/g 101325 
Vaporization Enthalpy 1209.22 J/g 101325 
Heat Capacity 321 J/kg-K 298.149993896 100000 
 
Glossary