Template:Infobox titanium

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22 scandiumtitaniumvanadium
-

Ti

Zr
General
Name, symbol, number titanium, Ti, 22
Chemical series transition metals
Group, period, block 44, d
Appearance silvery grey-white metallic
Standard atomic weight 47.867(1)g·mol−1
Electron configuration [Ar] 3d2 4s2
Electrons per shell 2, 8, 8, 4
Physical properties
Phase solid
Density (near r.t.) 4.506 g·cm−3
Liquid density at m.p. 4.11 g·cm−3
Melting point 1941 K
(1668 °C, 3034 °F)
Boiling point 3560 K
(3287 °C, 5949 °F)
Heat of fusion 14.15 kJ·mol−1
Heat of vaporization 425 kJ·mol−1
Specific heat capacity (25 °C) 25.060 J·mol−1·K−1
Vapor pressure
P/Pa 1 10 100 1 k 10 k 100 k
at T/K 1982 2171 (2403) 2692 3064 3558
Atomic properties
Crystal structure hexagonal
Oxidation states 4, 3, 2, 1 [1]
(amphoteric oxide)
Electronegativity 1.54 (Pauling scale)
Ionization energies
(more)
1st: 658.8 kJ·mol−1
2nd: 1309.8 kJ·mol−1
3rd: 2652.5 kJ·mol−1
Atomic radius 140 pm
Atomic radius (calc.) 176 pm
Covalent radius 136 pm
Miscellaneous
Magnetic ordering paramagnetic
Electrical resistivity (20 °C) 0.420 µΩ·m
Thermal conductivity (300 K) 21.9 W·m−1·K−1
Thermal expansion (25 °C) 8.6 µm·m−1·K−1
Speed of sound (thin rod) (r.t.) 5090 m·s−1
Young's modulus 116 GPa
Shear modulus 44 GPa
Bulk modulus 110 GPa
Poisson ratio 0.32
Mohs hardness 6.0
Vickers hardness 970 MPa
Brinell hardness 716 MPa
CAS registry number 7440-32-6
Selected isotopes
Main article: Isotopes of titanium
iso NA half-life DM DE (MeV) DP
44Ti syn 63 y ε - 44Sc
γ 0.07D, 0.08D -
46Ti 8.0% 46Ti is stable with 24 neutrons
47Ti 7.3% 47Ti is stable with 25 neutrons
48Ti 73.8% 48Ti is stable with 26 neutrons
49Ti 5.5% 49Ti is stable with 27 neutrons
50Ti 5.4% 50Ti is stable with 28 neutrons
References
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