Atomic Properties of Ti
- Atomic Number of Ti
- 22
- Atomic Mass of Ti
- 47.8670 u
- Electron Configuration
- [Ar] 3d2 4s2
- Electronegativity
- 1.54
- Block
- d-block
- Group
- 4
- Period
- 4
Titanium (Ti) is element 22 on the periodic table. Atomic mass of Ti: 47.8670 u. Ti is in period 4, group 4. Melting point of Ti: 1941.00 K.Density of Ti: 4.51 g/cm³.
The aerospace metal that's also in your white paint and sunscreen
No biological role, but highly biocompatible. Used for implants because bone grows onto titanium surfaces. Non-toxic and non-allergenic.
Discovered by William Gregor in England, 1791
Name origin: Greek: titanos (Titans).
White metallic transition element. Occurs in numerous minerals. Used in strong, light corrosion-resistant alloys. Forms a passive oxide coating when exposed to air. First discovered by Gregor in 1789.
Titanium has 5 naturally occurring isotopes.
| Isotope | Atomic Mass (u) | Abundance | Half-Life | Decay Mode |
|---|---|---|---|---|
| 4622Ti (Ti-46)Titanium-46 isotope | 45.95262772 | 8.250% | — | — |
| 4722Ti (Ti-47)Titanium-47 isotope | 46.95175879 | 7.440% | — | — |
| 4822Ti (Ti-48)Titanium-48 isotope | 47.94794198 | 73.72% | — | — |
| 4922Ti (Ti-49)Titanium-49 isotope | 48.94786568 | 5.410% | — | — |
| 5022Ti (Ti-50)Titanium-50 isotope | 49.94478689 | 5.180% | — | — |
Data source: NIH PubChem (aggregated from IUPAC, NIST)
Isotopes of Titanium have important real-world applications in science and industry.
The isotope-amount ratio n(48Ti)/n(49Ti) has been used in Isotope Ratio Method (IRM) analysis (initial titanium ratio/final titanium ratio) to estimate the energy production of nuclear reactors. This ratio can also be used to confirm that a reactor is being used for non-proliferation purposes (purposes other than to assist in the formation of nuclear weapon grade materials) [201].
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.
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.
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