#22
Titanium
transition metal· Solid·47.8671 u
Titanium is a chemical element with symbol Ti and atomic number 22. It is a lustrous transition metal with a silver color, low density and high strength. It is highly resistant to corrosion in sea water, aqua regia and chlorine.
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Identity
- Symbol
- Ti
- Atomic Number
- 22
- Atomic Mass
- 47.8671 u
- Category
- transition metal
- Block
- d-block
- Period
- 4
- Group
- 4
- Appearance
- silvery grey-white metallic
- Year Discovered
- 1791 CE
- Discovered By
- William Gregor
- Named By
- Martin Heinrich Klaproth
Electrons
- Configuration
- [Ar] 3d2 4s2
- Full Configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d2
- Shells
- 2, 8, 10, 2
- Electronegativity
- 1.54
- Electron Affinity
- 7.289
- Oxidation States
- +4, +3, +2
- Ionization Energies
- 658.8, 1309.8, 2652.5, 4174.6, 9581 … +17 more
Physical Properties
- State at
- Solid
- Melting Point
- 1941
- Boiling Point
- 3560
- Density
- 4.506
- Molar Heat
- 25.06 J/(mol·K)
- Crystal Structure
- HEX
- Magnetic Ordering
- Paramagnetic
Mechanical
- Atomic Radius
- 176 pm
- Covalent Radius
- 160 pm
- Van der Waals
- 187 pm
- Metallic Radius
- 147 pm
- Mohs Hardness
- 6
- Brinell Hardness
- 716 MPa MPa
- Vickers Hardness
- 970 MPa MPa
- Bulk Modulus
- 110 GPa GPa
- Shear Modulus
- 44 GPa GPa
- Young's Modulus
- 116 GPa GPa
Thermal & Electrical
- Thermal Conductivity
- 21.9 W/(m K) W/(m·K)
- Electrical Conductivity
- 2.38 MS/m S/m
- Specific Heat
- 520 J/(kg K) J/(g·K)
- Heat of Vaporization
- 425 kJ/mol kJ/mol
- Heat of Fusion
- 14.15 kJ/mol kJ/mol
Abundance
- Universe
- 3 ppm
- Sun
- 4 ppm
- Meteorite
- 540 ppm
- Earth's Crust
- 5650 ppm
- Ocean
- 1.00 ppb
- Human Body
- 0