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87 Fr Francium (plaintext) |
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H He |
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Li Be B C N O F Ne |
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Na Mg Al Si P S Cl Ar |
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K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr |
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Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe |
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Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn |
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[Fr]Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og |
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Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu |
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Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr |
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| Francium | |
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| 223.01973 u | |
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Wiki Article: Francium |
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Electron Configuration: [Rn]7s1 |
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Electronegativity: 0.7 |
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Atomic Radius: 348 pm |
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Ionization Energy: 3.9 eV |
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Electron Affinity: 0.47 eV |
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Oxidation States: 1 |
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Standard State: Solid |
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Melting Point: 300 K |
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Boiling Point: |
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Density: |
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Family: Alkali metal |
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Year Discovered: 1939 |
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Number of Neutrons: 136 |
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Number of Protons: 87 |
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Number of Electrons: 87 |
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Number of Valence: 1 |
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Valency: 1 |
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Group: 1 |
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Period: 7 |
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Shell: s-shell |
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Specific Heat: |
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Radioactive: 1 |
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Occurrence: Rare |
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Source: Radioactive decay |
