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