Periodic Table Element Comparison: Compare Elements - Hafnium vs Radon
Compare Hafnium and Radon on the basis of their properties, attributes and periodic table facts. Compare elements on more than 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 Hafnium vs Radon with most reliable information about their properties, attributes, facts, uses etc. You can compare Hf vs Rn on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more. Hafnium and Radon comparison table on more than 90 properties.
Hafnium and Radon Comparison
Facts
| Name | Hafnium | Radon |
|---|---|---|
| Atomic Number | 72 | 86 |
| Atomic Symbol | Hf | Rn |
| Atomic Weight | 178.49 | 222 |
| Phase at STP | Solid | Gas |
| Color | Gray | Colorless |
| Metallic Classification | Transition Metal | Noble Gas |
| Group in Periodic Table | group 4 | group 18 |
| Group Name | titanium family | helium family or neon family |
| Period in Periodic Table | period 6 | period 6 |
| Block in Periodic Table | d -block | p -block |
| Electronic Configuration | [Xe] 4f14 5d2 6s2 | [Xe] 4f14 5d10 6s2 6p6 |
| Electronic Shell Structure (Electrons per shell) | 2, 8, 18, 32, 10, 2 | 2, 8, 18, 32, 18, 8 |
| Melting Point | 2506 K | 202 K |
| Boiling Point | 4876 K | 211.3 K |
| CAS Number | CAS7440-58-6 | CAS10043-92-2 |
| Neighborhood Elements | Neighborhood Elements of Hafnium | Neighborhood Elements of Radon |
History
| Parameter | Hafnium | Radon |
|---|---|---|
| History | The element Hafnium was discovered by D. Coster and G. von Hevesy in year 1922 in Denmark. Hafnium derived its name from Hafnia, the New Latin name for Copenhagen. | The element Radon was discovered by E. Rutherford and R. B. Owens in year 1899 in Germany. Radon derived its name From radium, as it was first detected as an emission from radium during radioactive decay. |
| Discovery | D. Coster and G. von Hevesy (1922) | E. Rutherford and R. B. Owens (1899) |
| Isolated | D. Coster and G. von Hevesy (1922) | W. Ramsay and R. Whytlaw-Gray (1910) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Property | Hafnium | Radon |
|---|---|---|
| Abundance in Universe | 0.7 / 0.005 | - / - |
| Abundance in Sun | 1 / 0.01 | - / - |
| Abundance in Meteorites | 170 / 20 | - / - |
| Abundance in Earth's Crust | 3300 / 380 | - / - |
| Abundance in Oceans | 0.008 / 0.00028 | 0.0000000000006 / 0.00000000000002 |
| Abundance in Humans | - / - | - / - |
Crystal Structure and Atomic Structure
| Property | Hafnium | Radon |
|---|---|---|
| Atomic Volume | 13.44 cm3/mol | 50.5 cm3/mol |
| Atomic Radius | 208 pm | 120 pm |
| Covalent Radius | 150 pm | 145 pm |
| Van der Waals Radius | - | 220 pm |
Atomic Spectrum - Spectral Lines | ||
| Emission Spectrum |  |  |
| Absorption Spectrum |  |  |
| Lattice Constant | 319.64, 319.64, 505.11 pm | - |
| Lattice Angle | π/2, π/2, 2 π/3 | - |
| Space Group Name | P63/mmc | - |
| Space Group Number | 194 | - |
| Crystal Structure | Simple Hexagonal  | Face Centered Cubic  |
Atomic and Orbital Properties
| Property | Hafnium | Radon |
|---|---|---|
| Atomic Number | 72 | 86 |
| Number of Electrons (with no charge) | 72 | 86 |
| Number of Protons | 72 | 86 |
| Mass Number | 178.49 | 222 |
| Number of Neutrons | 106 | 136 |
| Shell structure (Electrons per energy level) | 2, 8, 18, 32, 10, 2 | 2, 8, 18, 32, 18, 8 |
| Electron Configuration | [Xe] 4f14 5d2 6s2 | [Xe] 4f14 5d10 6s2 6p6 |
| Valence Electrons | 5d2 6s2 | 6s2 6p6 |
| Oxidation State | 4 | 2 |
| Atomic Term Symbol (Quantum Numbers) | 3F2 | 1S0 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Hafnium has 5 stable naturally occuring isotopes while Radon has 0 stable naturally occuring isotopes.
| Parameter | Hafnium | Radon |
|---|---|---|
| Known Isotopes | 153Hf, 154Hf, 155Hf, 156Hf, 157Hf, 158Hf, 159Hf, 160Hf, 161Hf, 162Hf, 163Hf, 164Hf, 165Hf, 166Hf, 167Hf, 168Hf, 169Hf, 170Hf, 171Hf, 172Hf, 173Hf, 174Hf, 175Hf, 176Hf, 177Hf, 178Hf, 179Hf, 180Hf, 181Hf, 182Hf, 183Hf, 184Hf, 185Hf, 186Hf, 187Hf, 188Hf | 195Rn, 196Rn, 197Rn, 198Rn, 199Rn, 200Rn, 201Rn, 202Rn, 203Rn, 204Rn, 205Rn, 206Rn, 207Rn, 208Rn, 209Rn, 210Rn, 211Rn, 212Rn, 213Rn, 214Rn, 215Rn, 216Rn, 217Rn, 218Rn, 219Rn, 220Rn, 221Rn, 222Rn, 223Rn, 224Rn, 225Rn, 226Rn, 227Rn, 228Rn |
| Stable Isotopes | Naturally occurring stable isotopes: 176Hf, 177Hf, 178Hf, 179Hf, 180Hf | |
| Neutron Cross Section | 104 | 0.7 |
| Neutron Mass Absorption | 0.02 | - |
Chemical Properties: Ionization Energies and electron affinity
| Property | Hafnium | Radon |
|---|---|---|
| Valence or Valency | 4 | 6 |
| Electronegativity | 1.3 Pauling Scale | 2.2 Pauling Scale |
| Electron Affinity | 0 kJ/mol | 0 kJ/mol |
| Ionization Energies | 1st: 658.5 kJ/mol 2nd: 1440 kJ/mol 3rd: 2250 kJ/mol 4th: 3216 kJ/mol | 1st: 1037 kJ/mol |
Physical Properties
| Property | Hafnium | Radon |
|---|---|---|
| Density | 13.31 g/cm3 | 0.00973 g/cm3 |
| Molar Volume | 13.44 cm3/mol | 50.5 cm3/mol |
Elastic Properties | ||
| Young Modulus | 78 | - |
| Shear Modulus | 30 GPa | - |
| Bulk Modulus | 110 GPa | - |
| Poisson Ratio | 0.37 | - |
Hardness - Tests to Measure of Hardness of Element | ||
| Mohs Hardness | 5.5 MPa | - |
| Vickers Hardness | 1760 MPa | - |
| Brinell Hardness | 1700 MPa | - |
Electrical Properties | ||
| Electrical Conductivity | 3300000 S/m | - |
| Resistivity | 3e-7 m Ω | - |
| Superconducting Point | 0.128 | - |
Heat and Conduction Properties | ||
| Thermal Conductivity | 23 W/(m K) | 0.00361 W/(m K) |
| Thermal Expansion | 0.0000059 /K | - |
Magnetic Properties | ||
| Magnetic Type | Paramagnetic | - |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | 5.3e-9 m3/kg | - |
| Molar Magnetic Susceptibility | 9.46e-10 m3/mol | - |
| Volume Magnetic Susceptibility | 0.0000705 | - |
Optical Properties | ||
| Refractive Index | - | - |
Acoustic Properties | ||
| Speed of Sound | 3010 m/s | - |
Thermal Properties - Enthalpies and thermodynamics
| Property | Hafnium | Radon |
|---|---|---|
| Melting Point | 2506 K | 202 K |
| Boiling Point | 4876 K | 211.3 K |
| Critical Temperature | - | 377 K |
| Superconducting Point | 0.128 | - |
Enthalpies | ||
| Heat of Fusion | 25.5 kJ/mol | 3 kJ/mol |
| Heat of Vaporization | 630 kJ/mol | 17 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| Parameter | Hafnium | Radon |
|---|---|---|
| CAS Number | CAS7440-58-6 | CAS10043-92-2 |
| RTECS Number | RTECSMG4600000 | RTECSVE3750000 |
| DOT Hazard Class | 4.2 | 7 |
| DOT Numbers | 2545 | 2912 |
| EU Number | - | EU233-146-0 |
| NFPA Fire Rating | - | - |
| NFPA Health Rating | - | - |
| NFPA Reactivity Rating | - | - |
| NFPA Hazards | - | - |
| AutoIgnition Point | - | - |
| Flashpoint | - | - |
Compare With Other Elements
Compare Hafnium and Radon with other elements of the periodic table.