FLW Incorporated | Specialists in Physical Measurement, Testing, Calibration & Control

Periodic Table

Picture of  Promethium
 
 

 Atomic No. Order:
[Picture]

 Alphabetic Order:
 

Promethium  
Ground State Electron Configuration of  Promethium
Symbol: Pm
Atomic Number: 61
Atomicmass: (147) g.mol -1
Electronegative (According to Pauling): unknown
Density: 6.475 g.cm-3 at 20°C
Melting Point: 1168 °C
Boiling Point: 2460 °C
Venderwaals Radius: unknown
Ionic Radius: unknown
Isotopes: 9
Electronic Shell: [ Xe ] 4f5 6s2
Energy Of First Ionization: 534.6 kJ.mol -1  

61

No of Protons
Standard Potential: - 2.42 V

Electron in Full Shell
Discoverd By: Discovered by Marinsky in 1945

Electron in Partial Shell
   
 
 

 
FLW, Inc. provides ISO certified sales, service and calibration for physical measurement, test & control.
5672 Bolsa Avenue Huntington Beach, CA 92649 - USA - Ph (714) 622-2000 - Fax (714) 622-2001
This Day in History