Compare Titanium vs Iridium: Periodic Table Element Comparison Table and Properties
Compare the elements Titanium and Iridium on the basis of their properties, attributes and periodic table facts. Compare elements - Titanium and Iridium comparison table side by side across over 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Titanium vs Iridium with most reliable information about their properties, attributes, facts, uses etc. You can compare Ti vs Ir on more than 90 properties like electronegativity, oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more. This in-depth comparison helps students, educators, researchers, and science enthusiasts understand the differences and similarities between Titanium and Iridium.
Titanium and Iridium Comparison
Here's a detailed comparison between Titanium (Ti) and Iridium (Ir), focusing on their position in the periodic table, physical and chemical properties, stability, and uses.
Facts - Basic Element Details
| Name | Titanium | Iridium |
|---|---|---|
| Atomic Number | 22 | 77 |
| Atomic Symbol | Ti | Ir |
| Atomic Weight | 47.867 | 192.217 |
| Phase at STP | Solid | Solid |
| Color | Silver | Silver |
| Metallic Classification | Transition Metal | Transition Metal |
| Group in Periodic Table | group 4 | group 9 |
| Group Name | titanium family | cobalt family |
| Period in Periodic Table | period 4 | period 6 |
| Block in Periodic Table | d -block | d -block |
| Electronic Configuration | [Ar] 3d2 4s2 | [Xe] 4f14 5d7 6s2 |
| Electronic Shell Structure (Electrons per shell) | 2, 8, 10, 2 | 2, 8, 18, 32, 15, 2 |
| Melting Point | 1941 K | 2739 K |
| Boiling Point | 3560 K | 4701 K |
| CAS Number | CAS7440-32-6 | CAS7439-88-5 |
| Neighborhood Elements | Neighborhood Elements of Titanium | Neighborhood Elements of Iridium |
History
| Parameter | Titanium | Iridium |
|---|---|---|
| History | The element Titanium was discovered by W. Gregor in year 1791 in United Kingdom. Titanium derived its name from Titans, the sons of the Earth goddess of Greek mythology. | The element Iridium was discovered by S. Tennant in year 1803 in France and United Kingdom. Iridium derived its name from Iris, the Greek goddess of the rainbow. |
| Discovery | W. Gregor (1791) | S. Tennant (1803) |
| Isolated | J. Berzelius (1825) | S. Tennant (1803) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Property | Titanium | Iridium |
|---|---|---|
| Abundance in Universe | 3000 / 80 | 2 / 0.01 |
| Abundance in Sun | 4000 / 100 | 2 / 0.01 |
| Abundance in Meteorites | 550000 / 230000 | 550 / 60 |
| Abundance in Earth's Crust | 6600000 / 2900000 | 0.4 / 0.05 |
| Abundance in Oceans | 1 / 0.13 | - / - |
| Abundance in Humans | - / - | - / - |
Crystal Structure and Atomic Structure
| Property | Titanium | Iridium |
|---|---|---|
| Atomic Volume | 10.621 cm3/mol | 8.5203 cm3/mol |
| Atomic Radius | 176 pm | 180 pm |
| Covalent Radius | 136 pm | 137 pm |
| Van der Waals Radius | - | - |
Atomic Spectrum - Spectral Lines | ||
| Emission Spectrum |  |  |
| Absorption Spectrum |  |  |
| Lattice Constant | 295.08, 295.08, 468.55 pm | 383.9, 383.9, 383.9 pm |
| Lattice Angle | π/2, π/2, 2 π/3 | π/2, π/2, π/2 |
| Space Group Name | P63/mmc | Fm_ 3m |
| Space Group Number | 194 | 225 |
| Crystal Structure | Simple Hexagonal  | Face Centered Cubic  |
Atomic and Orbital Properties
| Property | Titanium | Iridium |
|---|---|---|
| Atomic Number | 22 | 77 |
| Number of Electrons (with no charge) | 22 | 77 |
| Number of Protons | 22 | 77 |
| Mass Number | 47.867 | 192.217 |
| Number of Neutrons | 26 | 115 |
| Shell structure (Electrons per energy level) | 2, 8, 10, 2 | 2, 8, 18, 32, 15, 2 |
| Electron Configuration | [Ar] 3d2 4s2 | [Xe] 4f14 5d7 6s2 |
| Valence Electrons | 3d2 4s2 | 5d7 6s2 |
| Oxidation State | 2, 3, 4 | 3, 4 |
| Atomic Term Symbol (Quantum Numbers) | 3F2 | 4F9/2 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Titanium has 5 stable naturally occuring isotopes while Iridium has 2 stable naturally occuring isotopes.
| Parameter | Titanium | Iridium |
|---|---|---|
| Known Isotopes | 38Ti, 39Ti, 40Ti, 41Ti, 42Ti, 43Ti, 44Ti, 45Ti, 46Ti, 47Ti, 48Ti, 49Ti, 50Ti, 51Ti, 52Ti, 53Ti, 54Ti, 55Ti, 56Ti, 57Ti, 58Ti, 59Ti, 60Ti, 61Ti, 62Ti, 63Ti | 164Ir, 165Ir, 166Ir, 167Ir, 168Ir, 169Ir, 170Ir, 171Ir, 172Ir, 173Ir, 174Ir, 175Ir, 176Ir, 177Ir, 178Ir, 179Ir, 180Ir, 181Ir, 182Ir, 183Ir, 184Ir, 185Ir, 186Ir, 187Ir, 188Ir, 189Ir, 190Ir, 191Ir, 192Ir, 193Ir, 194Ir, 195Ir, 196Ir, 197Ir, 198Ir, 199Ir |
| Stable Isotopes | Naturally occurring stable isotopes: 46Ti, 47Ti, 48Ti, 49Ti, 50Ti | Naturally occurring stable isotopes: 191Ir, 193Ir |
| Neutron Cross Section | 6.1 | 425 |
| Neutron Mass Absorption | 0.0044 | 0.08 |
Chemical Properties: Ionization Energies and electron affinity
| Property | Titanium | Iridium |
|---|---|---|
| Valence or Valency | 4 | 6 |
| Electronegativity | 1.54 Pauling Scale | 2.2 Pauling Scale |
| Oxidation State | 2, 3, 4 | 3, 4 |
| Electron Affinity | 7.6 kJ/mol | 151 kJ/mol |
| Ionization Energies | 1st: 658.8 kJ/mol 2nd: 1309.8 kJ/mol 3rd: 2652.5 kJ/mol 4th: 4174.6 kJ/mol 5th: 9581 kJ/mol 6th: 11533 kJ/mol 7th: 13590 kJ/mol 8th: 16440 kJ/mol 9th: 18530 kJ/mol 10th: 20833 kJ/mol 11th: 25575 kJ/mol 12th: 28125 kJ/mol 13th: 76015 kJ/mol 14th: 83280 kJ/mol 15th: 90880 kJ/mol 16th: 100700 kJ/mol 17th: 109100 kJ/mol 18th: 117800 kJ/mol 19th: 129900 kJ/mol 20th: 137530 kJ/mol 21st: 602930 kJ/mol 22nd: 639294 kJ/mol | 1st: 880 kJ/mol 2nd: 1600 kJ/mol |
Physical Properties
Titanium (4.507 g/cm³) is less dense than Iridium (22.56 g/cm³). This means that a given volume of Iridium will be heavier than the same volume of Titanium. Iridium is about 400.6 denser than Titanium
| Property | Titanium | Iridium |
|---|---|---|
| Phase at STP | Solid | Solid |
| Color | Silver | Silver |
| Density | 4.507 g/cm3 | 22.56 g/cm3 |
| Density (when liquid (at melting point)) | 4.11 g/cm3 | 19 g/cm3 |
| Molar Volume | 10.621 cm3/mol | 8.5203 cm3/mol |
Mechanical and Hardness Properties
| Property | Titanium | Iridium |
|---|---|---|
Elastic Properties | ||
| Young Modulus | 116 | 528 |
| Shear Modulus | 44 GPa | 210 GPa |
| Bulk Modulus | 110 GPa | 320 GPa |
| Poisson Ratio | 0.32 | 0.26 |
Hardness - Tests to Measure of Hardness of Element | ||
| Mohs Hardness | 6 MPa | 6.5 MPa |
| Vickers Hardness | 970 MPa | 1760 MPa |
| Brinell Hardness | 716 MPa | 1670 MPa |
Thermal and Electrical Conductivity
| Property | Titanium | Iridium |
|---|---|---|
Heat and Conduction Properties | ||
| Thermal Conductivity | 22 W/(m K) | 150 W/(m K) |
| Thermal Expansion | 0.0000086 /K | 0.0000064 /K |
Electrical Properties | ||
| Electrical Conductivity | 2500000 S/m | 21000000 S/m |
| Resistivity | 4e-7 m Ω | 4.7e-8 m Ω |
| Superconducting Point | 0.4 | 0.11 |
Magnetic and Optical Properties
| Property | Titanium | Iridium |
|---|---|---|
Magnetic Properties | ||
| Magnetic Type | Paramagnetic | Paramagnetic |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | 4.01e-8 m3/kg | 1.67e-9 m3/kg |
| Molar Magnetic Susceptibility | 1.919e-9 m3/mol | 3.21e-10 m3/mol |
| Volume Magnetic Susceptibility | 0.0001807 | 0.0000377 |
Optical Properties | ||
| Refractive Index | - | - |
Acoustic Properties | ||
| Speed of Sound | 4140 m/s | 4825 m/s |
Thermal Properties - Enthalpies and thermodynamics
| Property | Titanium | Iridium |
|---|---|---|
| Melting Point | 1941 K | 2739 K |
| Boiling Point | 3560 K | 4701 K |
| Critical Temperature | - | - |
| Superconducting Point | 0.4 | 0.11 |
Enthalpies | ||
| Heat of Fusion | 18.7 kJ/mol | 26 kJ/mol |
| Heat of Vaporization | 425 kJ/mol | 560 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| Parameter | Titanium | Iridium |
|---|---|---|
| CAS Number | CAS7440-32-6 | CAS7439-88-5 |
| RTECS Number | - | - |
| DOT Hazard Class | 4.2 | 4.1 |
| DOT Numbers | 2546 | 3089 |
| EU Number | - | - |
| NFPA Fire Rating | 1 | - |
| NFPA Health Rating | 1 | - |
| NFPA Reactivity Rating | 2 | - |
| NFPA Hazards | - | - |
| AutoIgnition Point | 250 °C | - |
| Flashpoint | - | - |
Compare Titanium and Iridium With Other Elements
Compare Titanium and Iridium with other elements of the periodic table. Explore howTitanium and Iridium stack up against other elements of the periodic table. Use our interactive comparison tool to analyze 90+ properties across different metals, non-metals, metalloids, and noble gases. Understanding these differences is crucial for applications in engineering, chemistry, electronics, biology, and material science.