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81 Tl Thallium (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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| Thallium | |
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| 204.383 u | |
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Wiki Article: Thallium |
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Electron Configuration: [Xe]6s2 4f14 5d10 6p1 |
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Electronegativity: 1.62 |
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Atomic Radius: 196 pm |
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Ionization Energy: 6.108 eV |
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Electron Affinity: 0.2 eV |
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Oxidation States: +3, +1 |
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Standard State: Solid |
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Melting Point: 577 K |
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Boiling Point: 1746 K |
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Density: 11.8 g/cm3 |
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Family: Post-transition metal |
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Year Discovered: 1861 |
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Number of Neutrons: 123 |
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Number of Protons: 81 |
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Number of Electrons: 81 |
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Number of Valence: 3 |
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Valency: 3 |
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Group: 13 |
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Period: 6 |
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Shell: p-shell |
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Specific Heat: 0.129 J/g K |
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Radioactive: 0 |
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Occurrence: Natural |
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Source: Dying low-mass stars |
