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< Back Titanium  SEE PERIODIC TABLE   SEE FULL ARTICLE Atomic Number 22 Atomic Symbol Ti Atomic Weight 47.867 amu Group Transition, 4 Form Solid Density @ STP 4.506 g/cm3 Melting Point 1668 °C (3034.4 °F, 1941.2 °K) Boiling Point 3287 °C (5948.6 °F, 3560.2 °K) Heat of Fusion 14.15 kJ/mol Heat of Vaporization 425 kJ/mol First Ionization Potential 6.8282 eV Electronegativity (on Pauling scale) 1.54 Specific Heat Capacity 0.523 J/g K Ground State Electron Configuration 3d2 4s2 Oxidation States +2, +3, +4 Stable Isotopes and Natural Abundance on Earth 46Ti, 8.0%; 47Ti, 7.3%; 48Ti, 73.8%; 49Ti, 5.5%; 50Ti, 5.4% Selected Radioisotopes 44Ti Atomic Radius 176 pm Crystal Structure Hexagonal Discovered by Gregor, 1791

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