词条	Some predicted properties of elements 113 and 114
释义	Some predicted properties of elements 113 and 114 Table Some predicted properties of elements 113 and 114 element 113 element 114 (eka-thallium) (eka-lead) chemical group 13 14 atomic weight 297 298 most stable oxidation state +1 +2 oxidation potential, V –0.6 –0.8 M → M+ + e– M → M2+ + 2e– metallic radius, Å 1.75 1.85 ionic radius, Å 1.48 1.31 first ionization potential, eV 7.4 8.5 second ionization potential, eV . . . 16.8 density, g/cm3 16 14 atomic volume, cm2/mole 18 21 boiling point, °C 1,100 150 melting point, °C 430 70 heat of sublimation, kcal/mole 34 10 heat of vaporization, kcal/mole 31 9 debye temperature, °K 70 46 entropy, entropy unit/mole (25 °C) 17 20 See as table:
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