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Titanium

Metalsolid
Symbol: Ti
Atomic number: 22
Atomic mass: 47.88
Group: Transition Metal
CAS-number: 7440-32-6

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Physical data
Isotopes
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Physical data

Electronic dataThermal dataSteric data
Shells: 2, 8, 10, 2
Orbitals: [Ar] 3d2 4s2
Electronegativity: 1.5, 1.3
1. Ionization potential: 6.8282 eV
2. Ionization potential: 13.58 eV
3. Ionization potential: 27.491 eV
Oxidation states: 4, 3
Electrical conductivity: 0.0234 10^6
Melting point: 1668 °C ±10
Boiling point: 3287 °C
Specific heat: 0.52 J/gK
Heat of fusion: 15.450 kJ/mol
Heat of vaporization: 421.00 kJ/mol
Thermal conductivity: 0.219 W/cmK
Atomic radius: 2.00 Å
Ionic radius: 0.61 Å (+4)
Covalent radius: 1.32 Å
Atomic volume: 10.64 cm³/mol
Density (293 K): 4.50 g/cm³
Crystal structure: hexagonal
hexagonal

Isotopes

NuclideAbundance [%]MassSpinHalflifeDecay modeDecay tree
44Ti 0 44 0 52y EC View
45Ti 0 45 7/2 3.078h β+, EC View
46Ti 7.93 45.9526 0 -- --
47Ti 7.28 46.9518 5/2 -- --
48Ti 73.94 47.9479 0 -- --
49Ti 5.51 48.9479 7/2 -- --
50Ti 5.34 49.9448 0 -- --
51Ti 0 51 3/2 5.76m β- View

Other info

Name origin:Greek: titanos (Titans)
Description:Shiny, dark-gray metal. Ninth most abundant element in the earth's crust (5700 ppm). It can be highly polished, and is relatively immune to tarnishing.
Discovered by:William Gregor
Year:1791
Place:England
Sources:Usually occurs in the minerals ilmenite (FeTiO3) or rutile (TiO2). Also in Titaniferous magnetite, titanite (CaTiSiO5), and iron ores. Pure metal produced by heating TiO2 with C and Cl2 to produce TiCl4 then heated with Mg gas in Ar atmosphere.
Use(s):Since it is strong and resists acids it is used in many alloys. Titanium dioxide (TiO2), a white pigment that covers surfaces very well, is used in paint, rubber, paper and many others.