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Francium
Atomic Number: 87
Name: Francium
Symbol: Fr
Atomic Weight: 223
Electron configuration: 1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p67s1
Pauling electronegativity: 0.7
Melting Point: 27oC
Boiling Point: 677oC
Ionic radius: 1.80 angstroms (+1)
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