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| Atomic Number | 87 |
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| Atomic Symbol | Fr |
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| Atomic Weight | [223 amu] |
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| Group | Alkali, 1 |
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| Form | Solid |
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| Melting Point | 27 °C (80.6 °F, 300.15 °K) |
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| Heat of Fusion | 2 kJ/mol (approx.) |
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| Heat of Vaporization | 65 kJ/mol (approx.) |
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| Electronegativity (on Pauling scale) | 0.7 |
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| Ground State Electron Configuration | 5d10 6s2 6p6 6f1 |
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| Oxidation States | +1 |
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| Selected Radioisotopes | 223Fr |
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| Discovered by | Perey, 1939 |
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