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22
Ti
47.90
Titanium |
Appearance & Characteristics | Reactions |
Other Forms Radius | Conductivity | Abundance
General:
| Name: Titanium | Symbol: Ti |
| Group: Trans. Met. | Atomic weight: 47.90 |
| Density @ 293 K: 4.50 g/cm3 | Atomic volume: 10.64 cm3/mol |
| Group: Trans. Met. | Discovered: 1791 |
States
| State (s, l, g): solid | |
| Melting point: 1933.2 K | Boiling point: 3558 K |
| Heat of fusion: 15.450 kJ/mol | Heat of vaporization: 421.00 kJ/mol |
Energies
| 1st ionization energy: 658 kJ/mole | |
| Electronegativity: 1.54 | 2nd ionization energy: 1310.3 kJ/mole |
| Electron affinity: 7.6 kJ/mole | 3rd ionization energy: 2652.5 kJ/mole |
| Specific heat: 0.52 J/gK | Heat atomization: 470 kJ/mole atoms |
Oxidation & Electrons
| Shells: 2,8,10,2 | Electron configuration: [Ar] 3d2 4s2 |
| Minimum oxidation number: -1 | Maximum oxidation number: 4 |
| Min. common oxidation no.: 0 | Max. common oxidation no.: 4 |
Appearance & Characteristics
| Structure: hcp: hexagonal close pkd | Color: gray |
| Uses: steel, white pigment(TiO2) | Toxicity: |
| Hardness: mohs | Characteristics: max strength/weight ratio |
Reactions
| Reaction with air: mild, w/ht => TiO2, TiN | |
| Reaction with 6 M HCl: none | Reaction with 6 M HCl: none |
| Reaction with 15 M HNO3: passivated | Reaction with 6 M NaOH: none |
Other Forms
| Number of isotopes: 5 | Hydride(s): TiH2 |
| Oxide(s): TiO Ti2O3 TiO2 + more | Chloride(s): TiCl2 TiCl3 TiCl4 |
Radius
| Ionic radius (2- ion): pm | Ionic radius (1- ion): pm |
| Atomic radius: 147 pm | Ionic radius (1+ ion): pm |
| Ionic radius (2+ ion): 100 pm | Ionic radius (3+ ion): 81 pm |
Conductivity
| Thermal conductivity: 21.9 J/m-sec-deg | |
| Electrical conductivity: 23.81 1/mohm-cm | Polarizability: 14.6 A^3 |
Abundance
| Source: Ilmenite, rutile(oxide) | |
| Rel. abund. solar system: 3.380 log | Abundance earth's crust: 3.8 log |
| cost, pure: 6.1 $/100g | cost, bulk: $/100g |
