Compare Lutetium vs Osmium: Periodic Table Element Comparison Table and Properties
Compare the elements Lutetium and Osmium on the basis of their properties, attributes and periodic table facts. Compare elements - Lutetium and Osmium 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 Lutetium vs Osmium with most reliable information about their properties, attributes, facts, uses etc. You can compare Lu vs Os 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 Lutetium and Osmium.
Lutetium and Osmium Comparison
Here's a detailed comparison between Lutetium (Lu) and Osmium (Os), focusing on their position in the periodic table, physical and chemical properties, stability, and uses.
Facts - Basic Element Details
| Name | Lutetium | Osmium |
|---|---|---|
| Atomic Number | 71 | 76 |
| Atomic Symbol | Lu | Os |
| Atomic Weight | 174.967 | 190.23 |
| Phase at STP | Solid | Solid |
| Color | Silver | SlateGray |
| Metallic Classification | Lanthanide | Transition Metal |
| Group in Periodic Table | group 3 | group 8 |
| Group Name | scandium family | iron family |
| Period in Periodic Table | period 6 | period 6 |
| Block in Periodic Table | d -block | d -block |
| Electronic Configuration | [Xe] 4f14 5d1 6s2 | [Xe] 4f14 5d6 6s2 |
| Electronic Shell Structure (Electrons per shell) | 2, 8, 18, 32, 9, 2 | 2, 8, 18, 32, 14, 2 |
| Melting Point | 1936 K | 3306 K |
| Boiling Point | 3675 K | 5285 K |
| CAS Number | CAS7439-94-3 | CAS7440-04-2 |
| Neighborhood Elements | Neighborhood Elements of Lutetium | Neighborhood Elements of Osmium |
History
| Parameter | Lutetium | Osmium |
|---|---|---|
| History | The element Lutetium was discovered by C. A. von Welsbach and G. Urbain in year 1906 in France and Germany. Lutetium derived its name from Lutetia, the Latin name for Paris. | The element Osmium was discovered by S. Tennant in year 1803 in United Kingdom. Osmium derived its name from the Greek osmè, meaning 'smell'. |
| Discovery | C. A. von Welsbach and G. Urbain (1906) | S. Tennant (1803) |
| Isolated | C. A. von Welsbach (1906) | S. Tennant (1803) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Property | Lutetium | Osmium |
|---|---|---|
| Abundance in Universe | 0.1 / 0.001 | 3 / 0.02 |
| Abundance in Sun | 1 / 0.01 | 2 / 0.02 |
| Abundance in Meteorites | 30 / 3 | 670 / 70 |
| Abundance in Earth's Crust | 560 / 70 | 1.8 / 0.2 |
| Abundance in Oceans | 0.00015 / 0.000005 | - / - |
| Abundance in Humans | - / - | - / - |
Crystal Structure and Atomic Structure
| Property | Lutetium | Osmium |
|---|---|---|
| Atomic Volume | 17.78 cm3/mol | 8.421 cm3/mol |
| Atomic Radius | 217 pm | 185 pm |
| Covalent Radius | 160 pm | 128 pm |
| Van der Waals Radius | - | - |
Atomic Spectrum - Spectral Lines | ||
| Emission Spectrum |  |  |
| Absorption Spectrum |  |  |
| Lattice Constant | 350.31, 350.31, 555.09 pm | 273.44, 273.44, 431.73 pm |
| Lattice Angle | π/2, π/2, 2 π/3 | π/2, π/2, 2 π/3 |
| Space Group Name | P63/mmc | P63/mmc |
| Space Group Number | 194 | 194 |
| Crystal Structure | Simple Hexagonal  | Simple Hexagonal |
Atomic and Orbital Properties
| Property | Lutetium | Osmium |
|---|---|---|
| Atomic Number | 71 | 76 |
| Number of Electrons (with no charge) | 71 | 76 |
| Number of Protons | 71 | 76 |
| Mass Number | 174.967 | 190.23 |
| Number of Neutrons | 104 | 114 |
| Shell structure (Electrons per energy level) | 2, 8, 18, 32, 9, 2 | 2, 8, 18, 32, 14, 2 |
| Electron Configuration | [Xe] 4f14 5d1 6s2 | [Xe] 4f14 5d6 6s2 |
| Valence Electrons | 5d1 6s2 | 5d6 6s2 |
| Oxidation State | 3 | 4 |
| Atomic Term Symbol (Quantum Numbers) | 2D3/2 | 5D4 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Lutetium has 1 stable naturally occuring isotopes while Osmium has 6 stable naturally occuring isotopes.
| Parameter | Lutetium | Osmium |
|---|---|---|
| Known Isotopes | 150Lu, 151Lu, 152Lu, 153Lu, 154Lu, 155Lu, 156Lu, 157Lu, 158Lu, 159Lu, 160Lu, 161Lu, 162Lu, 163Lu, 164Lu, 165Lu, 166Lu, 167Lu, 168Lu, 169Lu, 170Lu, 171Lu, 172Lu, 173Lu, 174Lu, 175Lu, 176Lu, 177Lu, 178Lu, 179Lu, 180Lu, 181Lu, 182Lu, 183Lu, 184Lu | 162Os, 163Os, 164Os, 165Os, 166Os, 167Os, 168Os, 169Os, 170Os, 171Os, 172Os, 173Os, 174Os, 175Os, 176Os, 177Os, 178Os, 179Os, 180Os, 181Os, 182Os, 183Os, 184Os, 185Os, 186Os, 187Os, 188Os, 189Os, 190Os, 191Os, 192Os, 193Os, 194Os, 195Os, 196Os |
| Stable Isotopes | Naturally occurring stable isotopes: 175Lu | Naturally occurring stable isotopes: 184Os, 187Os, 188Os, 189Os, 190Os, 192Os |
| Neutron Cross Section | 84 | 15 |
| Neutron Mass Absorption | 0.022 | 0.0023 |
Chemical Properties: Ionization Energies and electron affinity
| Property | Lutetium | Osmium |
|---|---|---|
| Valence or Valency | 3 | 6 |
| Electronegativity | 1.27 Pauling Scale | 2.2 Pauling Scale |
| Oxidation State | 3 | 4 |
| Electron Affinity | 50 kJ/mol | 106.1 kJ/mol |
| Ionization Energies | 1st: 523.5 kJ/mol 2nd: 1340 kJ/mol 3rd: 2022.3 kJ/mol 4th: 4370 kJ/mol 5th: 6445 kJ/mol | 1st: 840 kJ/mol 2nd: 1600 kJ/mol |
Physical Properties
Lutetium (9.841 g/cm³) is less dense than Osmium (22.59 g/cm³). This means that a given volume of Osmium will be heavier than the same volume of Lutetium. Osmium is about 129.5 denser than Lutetium
| Property | Lutetium | Osmium |
|---|---|---|
| Phase at STP | Solid | Solid |
| Color | Silver | SlateGray |
| Density | 9.841 g/cm3 | 22.59 g/cm3 |
| Density (when liquid (at melting point)) | 9.3 g/cm3 | 20 g/cm3 |
| Molar Volume | 17.78 cm3/mol | 8.421 cm3/mol |
Mechanical and Hardness Properties
| Property | Lutetium | Osmium |
|---|---|---|
Elastic Properties | ||
| Young Modulus | 69 | - |
| Shear Modulus | 27 GPa | 222 GPa |
| Bulk Modulus | 48 GPa | - |
| Poisson Ratio | 0.26 | 0.25 |
Hardness - Tests to Measure of Hardness of Element | ||
| Mohs Hardness | - | 7 MPa |
| Vickers Hardness | 1160 MPa | - |
| Brinell Hardness | 893 MPa | 3920 MPa |
Thermal and Electrical Conductivity
| Property | Lutetium | Osmium |
|---|---|---|
Heat and Conduction Properties | ||
| Thermal Conductivity | 16 W/(m K) | 88 W/(m K) |
| Thermal Expansion | 0.0000099 /K | 0.0000051 /K |
Electrical Properties | ||
| Electrical Conductivity | 1800000 S/m | 12000000 S/m |
| Resistivity | 5.59e-7 m Ω | 8.1e-8 m Ω |
| Superconducting Point | 0.1 | 0.66 |
Magnetic and Optical Properties
| Property | Lutetium | Osmium |
|---|---|---|
Magnetic Properties | ||
| Magnetic Type | Paramagnetic | Paramagnetic |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | 1.2e-9 m3/kg | 6e-10 m3/kg |
| Molar Magnetic Susceptibility | 2.1e-10 m3/mol | 1.1e-10 m3/mol |
| Volume Magnetic Susceptibility | 0.0000118 | 0.000014 |
Optical Properties | ||
| Refractive Index | - | - |
Acoustic Properties | ||
| Speed of Sound | - | 4940 m/s |
Thermal Properties - Enthalpies and thermodynamics
| Property | Lutetium | Osmium |
|---|---|---|
| Melting Point | 1936 K | 3306 K |
| Boiling Point | 3675 K | 5285 K |
| Critical Temperature | - | - |
| Superconducting Point | 0.1 | 0.66 |
Enthalpies | ||
| Heat of Fusion | 22 kJ/mol | 31 kJ/mol |
| Heat of Vaporization | 415 kJ/mol | 630 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| Parameter | Lutetium | Osmium |
|---|---|---|
| CAS Number | CAS7439-94-3 | CAS7440-04-2 |
| RTECS Number | - | RTECSRN1100000 |
| DOT Hazard Class | 4.1 | 4.1 |
| DOT Numbers | 3089 | 3089 |
| EU Number | - | - |
| NFPA Fire Rating | - | 4 |
| NFPA Health Rating | - | - |
| NFPA Reactivity Rating | - | 1 |
| NFPA Hazards | - | - |
| AutoIgnition Point | - | - |
| Flashpoint | - | - |
Compare Lutetium and Osmium With Other Elements
Compare Lutetium and Osmium with other elements of the periodic table. Explore howLutetium and Osmium 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.