Compare Lanthanum vs Lutetium: Periodic Table Element Comparison Table and Properties
Compare the elements Lanthanum and Lutetium on the basis of their properties, attributes and periodic table facts. Compare elements - Lanthanum and Lutetium 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 Lanthanum vs Lutetium with most reliable information about their properties, attributes, facts, uses etc. You can compare La vs Lu 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 Lanthanum and Lutetium.
Lanthanum and Lutetium Comparison
Here's a detailed comparison between Lanthanum (La) and Lutetium (Lu), focusing on their position in the periodic table, physical and chemical properties, stability, and uses.
Facts - Basic Element Details
| Name | Lanthanum | Lutetium |
|---|---|---|
| Atomic Number | 57 | 71 |
| Atomic Symbol | La | Lu |
| Atomic Weight | 138.9055 | 174.967 |
| Phase at STP | Solid | Solid |
| Color | Silver | Silver |
| Metallic Classification | Lanthanide | Lanthanide |
| Group in Periodic Table | Lanthanide (no group number) | group 3 |
| Group Name | scandium family | |
| Period in Periodic Table | period 6 | period 6 |
| Block in Periodic Table | f -block | d -block |
| Electronic Configuration | [Xe] 5d1 6s2 | [Xe] 4f14 5d1 6s2 |
| Electronic Shell Structure (Electrons per shell) | 2, 8, 18, 18, 9, 2 | 2, 8, 18, 32, 9, 2 |
| Melting Point | 1193 K | 1936 K |
| Boiling Point | 3737 K | 3675 K |
| CAS Number | CAS7439-91-0 | CAS7439-94-3 |
| Neighborhood Elements | Neighborhood Elements of Lanthanum | Neighborhood Elements of Lutetium |
History
| Parameter | Lanthanum | Lutetium |
|---|---|---|
| History | The element Lanthanum was discovered by G. Mosander in year 1838 in Sweden. Lanthanum derived its name from the Greek lanthanein, meaning 'to lie hidden'. | 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. |
| Discovery | G. Mosander (1838) | C. A. von Welsbach and G. Urbain (1906) |
| Isolated | G. Mosander (1841) | C. A. von Welsbach (1906) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Property | Lanthanum | Lutetium |
|---|---|---|
| Abundance in Universe | 2 / 0.02 | 0.1 / 0.001 |
| Abundance in Sun | 2 / 0.01 | 1 / 0.01 |
| Abundance in Meteorites | 290 / 40 | 30 / 3 |
| Abundance in Earth's Crust | 34000 / 5000 | 560 / 70 |
| Abundance in Oceans | 0.0034 / 0.00015 | 0.00015 / 0.000005 |
| Abundance in Humans | - / - | - / - |
Crystal Structure and Atomic Structure
| Property | Lanthanum | Lutetium |
|---|---|---|
| Atomic Volume | 22.386 cm3/mol | 17.78 cm3/mol |
| Atomic Radius | 195 pm | 217 pm |
| Covalent Radius | 169 pm | 160 pm |
| Van der Waals Radius | - | - |
Atomic Spectrum - Spectral Lines | ||
| Emission Spectrum |  |  |
| Absorption Spectrum |  |  |
| Lattice Constant | 377.2, 377.2, 1214.4 pm | 350.31, 350.31, 555.09 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 | Lanthanum | Lutetium |
|---|---|---|
| Atomic Number | 57 | 71 |
| Number of Electrons (with no charge) | 57 | 71 |
| Number of Protons | 57 | 71 |
| Mass Number | 138.9055 | 174.967 |
| Number of Neutrons | 82 | 104 |
| Shell structure (Electrons per energy level) | 2, 8, 18, 18, 9, 2 | 2, 8, 18, 32, 9, 2 |
| Electron Configuration | [Xe] 5d1 6s2 | [Xe] 4f14 5d1 6s2 |
| Valence Electrons | 5d1 6s2 | 5d1 6s2 |
| Oxidation State | 3 | 3 |
| Atomic Term Symbol (Quantum Numbers) | 2D3/2 | 2D3/2 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Lanthanum has 1 stable naturally occuring isotopes while Lutetium has 1 stable naturally occuring isotopes.
| Parameter | Lanthanum | Lutetium |
|---|---|---|
| Known Isotopes | 117La, 118La, 119La, 120La, 121La, 122La, 123La, 124La, 125La, 126La, 127La, 128La, 129La, 130La, 131La, 132La, 133La, 134La, 135La, 136La, 137La, 138La, 139La, 140La, 141La, 142La, 143La, 144La, 145La, 146La, 147La, 148La, 149La, 150La, 151La, 152La, 153La, 154La, 155La | 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 |
| Stable Isotopes | Naturally occurring stable isotopes: 139La | Naturally occurring stable isotopes: 175Lu |
| Neutron Cross Section | 8.98 | 84 |
| Neutron Mass Absorption | 0.0023 | 0.022 |
Chemical Properties: Ionization Energies and electron affinity
| Property | Lanthanum | Lutetium |
|---|---|---|
| Valence or Valency | 3 | 3 |
| Electronegativity | 1.1 Pauling Scale | 1.27 Pauling Scale |
| Oxidation State | 3 | 3 |
| Electron Affinity | 48 kJ/mol | 50 kJ/mol |
| Ionization Energies | 1st: 538.1 kJ/mol 2nd: 1067 kJ/mol 3rd: 1850.3 kJ/mol 4th: 4819 kJ/mol 5th: 5940 kJ/mol | 1st: 523.5 kJ/mol 2nd: 1340 kJ/mol 3rd: 2022.3 kJ/mol 4th: 4370 kJ/mol 5th: 6445 kJ/mol |
Physical Properties
Lanthanum (6.146 g/cm³) is less dense than Lutetium (9.841 g/cm³). This means that a given volume of Lutetium will be heavier than the same volume of Lanthanum. Lutetium is about 60.099999999999994 denser than Lanthanum
| Property | Lanthanum | Lutetium |
|---|---|---|
| Phase at STP | Solid | Solid |
| Color | Silver | Silver |
| Density | 6.146 g/cm3 | 9.841 g/cm3 |
| Density (when liquid (at melting point)) | 5.94 g/cm3 | 9.3 g/cm3 |
| Molar Volume | 22.386 cm3/mol | 17.78 cm3/mol |
Mechanical and Hardness Properties
| Property | Lanthanum | Lutetium |
|---|---|---|
Elastic Properties | ||
| Young Modulus | 37 | 69 |
| Shear Modulus | 14 GPa | 27 GPa |
| Bulk Modulus | 28 GPa | 48 GPa |
| Poisson Ratio | 0.28 | 0.26 |
Hardness - Tests to Measure of Hardness of Element | ||
| Mohs Hardness | 2.5 MPa | - |
| Vickers Hardness | 491 MPa | 1160 MPa |
| Brinell Hardness | 363 MPa | 893 MPa |
Thermal and Electrical Conductivity
| Property | Lanthanum | Lutetium |
|---|---|---|
Heat and Conduction Properties | ||
| Thermal Conductivity | 13 W/(m K) | 16 W/(m K) |
| Thermal Expansion | 0.0000121 /K | 0.0000099 /K |
Electrical Properties | ||
| Electrical Conductivity | 1600000 S/m | 1800000 S/m |
| Resistivity | 6.1e-7 m Ω | 5.59e-7 m Ω |
| Superconducting Point | 4.88 | 0.1 |
Magnetic and Optical Properties
| Property | Lanthanum | Lutetium |
|---|---|---|
Magnetic Properties | ||
| Magnetic Type | Paramagnetic | Paramagnetic |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | 1.1e-8 m3/kg | 1.2e-9 m3/kg |
| Molar Magnetic Susceptibility | 1.528e-9 m3/mol | 2.1e-10 m3/mol |
| Volume Magnetic Susceptibility | 0.00006761 | 0.0000118 |
Optical Properties | ||
| Refractive Index | - | - |
Acoustic Properties | ||
| Speed of Sound | 2475 m/s | - |
Thermal Properties - Enthalpies and thermodynamics
| Property | Lanthanum | Lutetium |
|---|---|---|
| Melting Point | 1193 K | 1936 K |
| Boiling Point | 3737 K | 3675 K |
| Critical Temperature | - | - |
| Superconducting Point | 4.88 | 0.1 |
Enthalpies | ||
| Heat of Fusion | 6.2 kJ/mol | 22 kJ/mol |
| Heat of Vaporization | 400 kJ/mol | 415 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| Parameter | Lanthanum | Lutetium |
|---|---|---|
| CAS Number | CAS7439-91-0 | CAS7439-94-3 |
| RTECS Number | - | - |
| DOT Hazard Class | 4.1 | 4.1 |
| DOT Numbers | 3178 | 3089 |
| EU Number | - | - |
| NFPA Fire Rating | - | - |
| NFPA Health Rating | - | - |
| NFPA Reactivity Rating | - | - |
| NFPA Hazards | - | - |
| AutoIgnition Point | - | - |
| Flashpoint | - | - |
Compare Lanthanum and Lutetium With Other Elements
Compare Lanthanum and Lutetium with other elements of the periodic table. Explore howLanthanum and Lutetium 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.
Compare Lanthanum with all Group elementsCompare Lanthanum with all Period 6 elementsCompare Lanthanum with all Lanthanide elements | Compare Lutetium with all Group 3 elementsCompare Lutetium with all Period 6 elementsCompare Lutetium with all Lanthanide elements |