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Master Bond adhesives

Francium, Fr
Categories: Metal; Nonferrous Metal; Pure Element

Material Notes: Fr-223 is the isotope with the longest half-life (22 min). Very little property data is available.

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Chemical PropertiesMetricEnglishComments
Atomic Mass 223223Longest-Lived Isotope (1995)
Atomic Number 8787
X-ray Absorption Edge 0.12261 Å0.12261 ÅK
 0.66537 Å0.66537 ÅLI
 0.6929 Å0.6929 ÅLII
 0.82529 Å0.82529 ÅLIII
Electronegativity 0.700.70Pauling
Ionic Radius 1.80 Å1.80 ÅCrystal Ionic Radius for Valence +1
 
Thermal PropertiesMetricEnglishComments
Melting Point 27.0 °C80.6 °F
 
Component Elements PropertiesMetricEnglishComments
Francium, Fr 100 %100 %
 
Descriptive Properties
CAS Number7440-73-5

References for this datasheet.

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