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87
  Fr  
223.000000
Francium


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Name: Francium
Symbol: Fr
Atomic Number: 87
AtomicWeight: 223.000000
Family: alkali metals
CAS RN: 7440-73-5
Description: Metallic, very rare and radioactive
State (25 ° C): Solid
Oxidation states: +1
Valence Electrons: 7s1

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