Compare Cadmium vs Aluminium: Periodic Table Element Comparison Table and Properties
Compare the elements Cadmium and Aluminium on the basis of their properties, attributes and periodic table facts. Compare elements - Cadmium and Aluminium 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 Cadmium vs Aluminium with most reliable information about their properties, attributes, facts, uses etc. You can compare Cd vs Al 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 Cadmium and Aluminium.
Cadmium and Aluminium Comparison
Here's a detailed comparison between Cadmium (Cd) and Aluminium (Al), focusing on their position in the periodic table, physical and chemical properties, stability, and uses.
Facts - Basic Element Details
| Name | Cadmium | Aluminium |
|---|---|---|
| Atomic Number | 48 | 13 |
| Atomic Symbol | Cd | Al |
| Atomic Weight | 112.411 | 26.981538 |
| Phase at STP | Solid | Solid |
| Color | Silver | Silver |
| Metallic Classification | Transition Metal | Post Transition Metal |
| Group in Periodic Table | group 12 | group 13 |
| Group Name | zinc family | boron family |
| Period in Periodic Table | period 5 | period 3 |
| Block in Periodic Table | d -block | p -block |
| Electronic Configuration | [Kr] 4d10 5s2 | [Ne] 3s2 3p1 |
| Electronic Shell Structure (Electrons per shell) | 2, 8, 18, 18, 2 | 2, 8, 3 |
| Melting Point | 594.22 K | 933.47 K |
| Boiling Point | 1040 K | 2792 K |
| CAS Number | CAS7440-43-9 | CAS7429-90-5 |
| Neighborhood Elements | Neighborhood Elements of Cadmium | Neighborhood Elements of Aluminium |
History
| Parameter | Cadmium | Aluminium |
|---|---|---|
| History | The element Cadmium was discovered by S. L Hermann,F. Stromeyer, and J.C.H. Roloff in year 1817 in Germany. Cadmium derived its name from the New Latin cadmia, from King Kadmos. | The element Aluminium was discovered by H.C.Ørsted in year 1825 in Denmark. Aluminium derived its name from alumina, a compound (originally aluminum). |
| Discovery | S. L Hermann,F. Stromeyer, and J.C.H. Roloff (1817) | H.C.Ørsted (1825) |
| Isolated | S. L Hermann, F. Stromeyer, and J.C.H. Roloff (1817) | H.C.Ørsted (1825) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Property | Cadmium | Aluminium |
|---|---|---|
| Abundance in Universe | 2 / 0.02 | 50000 / 2000 |
| Abundance in Sun | 6 / 0.07 | 60000 / 3000 |
| Abundance in Meteorites | 450 / 60 | 9300000 / 6700000 |
| Abundance in Earth's Crust | 150 / 30 | 82000000 / 63000000 |
| Abundance in Oceans | 0.05 / 0.0028 | 5 / 1.1 |
| Abundance in Humans | 700 / 39 | 900 / 210 |
Crystal Structure and Atomic Structure
| Property | Cadmium | Aluminium |
|---|---|---|
| Atomic Volume | 12.995 cm3/mol | 9.99 cm3/mol |
| Atomic Radius | 161 pm | 118 pm |
| Covalent Radius | 148 pm | 118 pm |
| Van der Waals Radius | 158 pm | 184 pm |
Atomic Spectrum - Spectral Lines | ||
| Emission Spectrum |  |  |
| Absorption Spectrum |  |  |
| Lattice Constant | 297.94, 297.94, 561.86 pm | 404.95, 404.95, 404.95 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 | Cadmium | Aluminium |
|---|---|---|
| Atomic Number | 48 | 13 |
| Number of Electrons (with no charge) | 48 | 13 |
| Number of Protons | 48 | 13 |
| Mass Number | 112.411 | 26.981538 |
| Number of Neutrons | 64 | 14 |
| Shell structure (Electrons per energy level) | 2, 8, 18, 18, 2 | 2, 8, 3 |
| Electron Configuration | [Kr] 4d10 5s2 | [Ne] 3s2 3p1 |
| Valence Electrons | 4d10 5s2 | 3s2 3p1 |
| Oxidation State | 2 | 3 |
| Atomic Term Symbol (Quantum Numbers) | 1S0 | 2P1/2 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Cadmium has 6 stable naturally occuring isotopes while Aluminium has 1 stable naturally occuring isotopes.
| Parameter | Cadmium | Aluminium |
|---|---|---|
| Known Isotopes | 95Cd, 96Cd, 97Cd, 98Cd, 99Cd, 100Cd, 101Cd, 102Cd, 103Cd, 104Cd, 105Cd, 106Cd, 107Cd, 108Cd, 109Cd, 110Cd, 111Cd, 112Cd, 113Cd, 114Cd, 115Cd, 116Cd, 117Cd, 118Cd, 119Cd, 120Cd, 121Cd, 122Cd, 123Cd, 124Cd, 125Cd, 126Cd, 127Cd, 128Cd, 129Cd, 130Cd, 131Cd, 132Cd | 21Al, 22Al, 23Al, 24Al, 25Al, 26Al, 27Al, 28Al, 29Al, 30Al, 31Al, 32Al, 33Al, 34Al, 35Al, 36Al, 37Al, 38Al, 39Al, 40Al, 41Al, 42Al |
| Stable Isotopes | Naturally occurring stable isotopes: 106Cd, 108Cd, 110Cd, 111Cd, 112Cd, 114Cd | Naturally occurring stable isotopes: 27Al |
| Neutron Cross Section | 2450 | 0.233 |
| Neutron Mass Absorption | 1.4 | 0.03 |
Chemical Properties: Ionization Energies and electron affinity
| Property | Cadmium | Aluminium |
|---|---|---|
| Valence or Valency | 2 | 3 |
| Electronegativity | 1.69 Pauling Scale | 1.61 Pauling Scale |
| Oxidation State | 2 | 3 |
| Electron Affinity | 0 kJ/mol | 42.5 kJ/mol |
| Ionization Energies | 1st: 867.8 kJ/mol 2nd: 1631.4 kJ/mol 3rd: 3616 kJ/mol | 1st: 577.5 kJ/mol 2nd: 1816.7 kJ/mol 3rd: 2744.8 kJ/mol 4th: 11577 kJ/mol 5th: 14842 kJ/mol 6th: 18379 kJ/mol 7th: 23326 kJ/mol 8th: 27465 kJ/mol 9th: 31853 kJ/mol 10th: 38473 kJ/mol 11th: 42647 kJ/mol 12th: 201266 kJ/mol 13th: 222316 kJ/mol |
Physical Properties
Aluminium (2.7 g/cm³) is less dense than Cadmium (8.65 g/cm³). This means that a given volume of Cadmium will be heavier than the same volume of Aluminium. Cadmium is about 220.4 denser than Aluminium
| Property | Cadmium | Aluminium |
|---|---|---|
| Phase at STP | Solid | Solid |
| Color | Silver | Silver |
| Density | 8.65 g/cm3 | 2.7 g/cm3 |
| Density (when liquid (at melting point)) | 7.996 g/cm3 | 2.375 g/cm3 |
| Molar Volume | 12.995 cm3/mol | 9.99 cm3/mol |
Mechanical and Hardness Properties
| Property | Cadmium | Aluminium |
|---|---|---|
Elastic Properties | ||
| Young Modulus | 50 | 70 |
| Shear Modulus | 19 GPa | 26 GPa |
| Bulk Modulus | 42 GPa | 76 GPa |
| Poisson Ratio | 0.3 | 0.35 |
Hardness - Tests to Measure of Hardness of Element | ||
| Mohs Hardness | 2 MPa | 2.75 MPa |
| Vickers Hardness | - | 167 MPa |
| Brinell Hardness | 203 MPa | 245 MPa |
Thermal and Electrical Conductivity
| Property | Cadmium | Aluminium |
|---|---|---|
Heat and Conduction Properties | ||
| Thermal Conductivity | 97 W/(m K) | 235 W/(m K) |
| Thermal Expansion | 0.0000308 /K | 0.0000231 /K |
Electrical Properties | ||
| Electrical Conductivity | 14000000 S/m | 38000000 S/m |
| Resistivity | 7e-8 m Ω | 2.6e-8 m Ω |
| Superconducting Point | 0.517 | 1.175 |
Magnetic and Optical Properties
| Property | Cadmium | Aluminium |
|---|---|---|
Magnetic Properties | ||
| Magnetic Type | Diamagnetic | Paramagnetic |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | -2.3e-9 m3/kg | 7.8e-9 m3/kg |
| Molar Magnetic Susceptibility | -2.59e-10 m3/mol | 2.1e-10 m3/mol |
| Volume Magnetic Susceptibility | -0.0000199 | 0.0000211 |
Optical Properties | ||
| Refractive Index | - | - |
Acoustic Properties | ||
| Speed of Sound | 2310 m/s | 5100 m/s |
Thermal Properties - Enthalpies and thermodynamics
| Property | Cadmium | Aluminium |
|---|---|---|
| Melting Point | 594.22 K | 933.47 K |
| Boiling Point | 1040 K | 2792 K |
| Critical Temperature | - | - |
| Superconducting Point | 0.517 | 1.175 |
Enthalpies | ||
| Heat of Fusion | 6.3 kJ/mol | 10.7 kJ/mol |
| Heat of Vaporization | 100 kJ/mol | 293 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| Parameter | Cadmium | Aluminium |
|---|---|---|
| CAS Number | CAS7440-43-9 | CAS7429-90-5 |
| RTECS Number | RTECSEU9800000 | RTECSBD0330000 |
| DOT Hazard Class | 6.1 | 4.3 |
| DOT Numbers | 2570 | 1396 |
| EU Number | - | - |
| NFPA Fire Rating | 2 | 1 |
| NFPA Health Rating | 2 | 0 |
| NFPA Reactivity Rating | 0 | 1 |
| NFPA Hazards | - | - |
| AutoIgnition Point | 250 °C | 400 °C |
| Flashpoint | - | 645 °C |
Compare Cadmium and Aluminium With Other Elements
Compare Cadmium and Aluminium with other elements of the periodic table. Explore howCadmium and Aluminium 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.