Materials Home
Pure Elements
Periodic Table
Element List
  by Name
  by Symbol
  by Atomic Number
  by Atomic Weight
Element Information
Resources
Bibliography
NASA Tech Briefs

Innovations developed by NASA and its industry partners in a wide array of fields.

Essentials of Manufacturing

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

Wind Systems

Towers, turbines, gearboxes; processes for shaping and finishing component parts.

Design-2-Part

How OEM's can make their parts better, faster, and more efficient.

more free magazines
Francium
87
Fr
[223]
Atomic Number 87
Atomic Weight [223]
Electron Config. 2-2-6-2-6-10-2-6-10-14-2-6-10-0-2-6-0-1
Electron configuration order: 1s-2s-2p-3s-3p-3d-4s-4p-4d-4f-5s-5p-5d-5f-6s-6p-6d-7s

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature 300.15 K   101325 
 
Glossary