Periodic Table Element Comparison: Compare Elements - Astatine vs Boron
Compare Astatine and Boron
Compare Astatine and Boron 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 Astatine vs Boron with most reliable information about their properties, attributes, facts, uses etc. You can compare At vs B on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
| Name | Astatine | Boron |
| Atomic Number | 85 | 5 |
| Atomic Symbol | At | B |
| Atomic Weight | 210 | 10.811 |
| Phase at STP | Solid | Solid |
| Color | Silver | Black |
| Metallic Classification | Halogens | Metalloid |
| Group in Periodic Table | group 17 | group 13 |
| Group Name | fluorine family | boron family |
| Period in Periodic Table | period 6 | period 2 |
| Block in Periodic Table | p -block | p -block |
| Electronic Configuration | [Xe] 4f14 5d10 6s2 6p5 | [He] 2s2 2p1 |
| Electronic Shell Structure (Electrons per shell) | 2, 8, 18, 32, 18, 7 | 2, 3 |
| Melting Point | 575 K | 2348 K |
| Boiling Point | - | 4273 K |
| CAS Number | CAS7440-68-8 | CAS7440-42-8 |
| Neighborhood Elements | Neighborhood Elements of Astatine | Neighborhood Elements of Boron |
History
| History | The element Astatine was discovered by R. Corson,R. MacKenzie and E. Segrè in year 1940 in United States. Astatine derived its name from the Greek astatos, 'unstable'. | The element Boron was discovered by L. Gay-Lussac and L.J. Thénard in year 1808 in France and United Kingdom. Boron derived its name from borax, a mineral. |
| Discovery | R. Corson,R. MacKenzie and E. Segrè (1940) | L. Gay-Lussac and L.J. Thénard (1808) |
| Isolated | () | H. Davy (1808) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Abundance in Universe | - / - | 1 / 0.1 |
| Abundance in Sun | - / - | 2 / 0.2 |
| Abundance in Meteorites | - / - | 1600 / 3000 |
| Abundance in Earth's Crust | - / - | 8700 / 17000 |
| Abundance in Oceans | - / - | 4440 / 2500 |
| Abundance in Humans | - / - | 700 / 410 |
Crystal Structure and Atomic Structure
| Atomic Volume | - | 4.3947 cm3/mol |
| Atomic Radius | 127 pm | 87 pm |
| Covalent Radius | - | 82 pm |
| Van der Waals Radius | 202 pm | 192 pm |
| Atomic Spectrum |  |  |
| Lattice Constant | - | 506, 506, 506 pm |
| Lattice Angle | - | 1.01334, 1.01334, 1.01334 |
| Space Group Name | - | R_ 3m |
| Space Group Number | - | 166 |
| Crystal Structure | Face Centered Cubic  | Simple Trigonal  |
Atomic and Orbital Properties
| Atomic Number | 85 | 5 |
| Number of Electrons (with no charge) | 85 | 5 |
| Number of Protons | 85 | 5 |
| Mass Number | 210 | 10.811 |
| Number of Neutrons | 125 | 6 |
| Shell structure (Electrons per energy level) | 2, 8, 18, 32, 18, 7 | 2, 3 |
| Electron Configuration | [Xe] 4f14 5d10 6s2 6p5 | [He] 2s2 2p1 |
| Valence Electrons | 6s2 6p5 | 2s2 2p1 |
| Oxidation State | -1, 1 | 3 |
| Atomic Term Symbol (Quantum Numbers) | 2P3/2 | 2P1/2 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Astatine has 0 stable naturally occuring isotopes while Boron has 2 stable naturally occuring isotopes.
| Known Isotopes | 193At, 194At, 195At, 196At, 197At, 198At, 199At, 200At, 201At, 202At, 203At, 204At, 205At, 206At, 207At, 208At, 209At, 210At, 211At, 212At, 213At, 214At, 215At, 216At, 217At, 218At, 219At, 220At, 221At, 222At, 223At | 6B, 7B, 8B, 9B, 10B, 11B, 12B, 13B, 14B, 15B, 16B, 17B, 18B, 19B |
| Stable Isotopes | - | Naturally occurring stable isotopes: 10B, 11B |
| Neutron Cross Section | - | 755 |
| Neutron Mass Absorption | - | 2.4 |
Chemical Properties: Ionization Energies and electron affinity
| Valence or Valency | 7 | 3 |
| Electronegativity | 2.2 Pauling Scale | 2.04 Pauling Scale |
| Electron Affinity | 270.1 kJ/mol | 26.7 kJ/mol |
| Ionization Energies | 1st: 899.003 kJ/mol | 1st: 800.6 kJ/mol 2nd: 2427.1 kJ/mol 3rd: 3659.7 kJ/mol 4th: 25025.8 kJ/mol 5th: 32826.7 kJ/mol |
Physical Properties
| Density | - | 2.46 g/cm3 |
| Molar Volume | - | 4.3947 cm3/mol |
Elastic Properties | ||
| Young Modulus | - | - |
| Shear Modulus | - | - |
| Bulk Modulus | - | 320 GPa |
| Poisson Ratio | - | - |
Hardness - Tests to Measure of Hardness of Element | ||
| Mohs Hardness | - | 9.3 MPa |
| Vickers Hardness | - | 49000 MPa |
| Brinell Hardness | - | - |
Electrical Properties | ||
| Electrical Conductivity | - | 0.0001 S/m |
| Resistivity | - | 10000 m Ω |
| Superconducting Point | - | - |
Heat and Conduction Properties | ||
| Thermal Conductivity | 2 W/(m K) | 27 W/(m K) |
| Thermal Expansion | - | 0.000006 /K |
Magnetic Properties | ||
| Magnetic Type | - | Diamagnetic |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | - | -8.7e-9 m3/kg |
| Molar Magnetic Susceptibility | - | -9.41e-11 m3/mol |
| Volume Magnetic Susceptibility | - | -0.0000214 |
Optical Properties | ||
| Refractive Index | - | - |
Acoustic Properties | ||
| Speed of Sound | - | 16200 m/s |
Thermal Properties - Enthalpies and thermodynamics
| Melting Point | 575 K | 2348 K |
| Boiling Point | - | 4273 K |
| Critical Temperature | - | - |
| Superconducting Point | - | - |
Enthalpies | ||
| Heat of Fusion | 6 kJ/mol | 50 kJ/mol |
| Heat of Vaporization | 40 kJ/mol | 507 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| CAS Number | CAS7440-68-8 | CAS7440-42-8 |
| RTECS Number | - | RTECSED7350000 |
| DOT Hazard Class | - | - |
| DOT Numbers | - | - |
| EU Number | - | - |
| NFPA Fire Rating | - | 3 |
| NFPA Hazards | - | - |
| NFPA Health Rating | - | 2 |
| NFPA Reactivity Rating | - | 0 |
| AutoIgnition Point | - | - |
| Flashpoint | - | - |
Compare With Other Elements
Compare Astatine with all Group 17 elementsCompare Astatine with all Period 6 elementsAstatine vs DysprosiumAstatine vs SamariumAstatine vs EuropiumAstatine vs PraseodymiumAstatine vs TungstenAstatine vs ThuliumAstatine vs LeadAstatine vs LutetiumAstatine vs TantalumAstatine vs RheniumAstatine vs ThalliumAstatine vs BariumAstatine vs LanthanumAstatine vs PromethiumAstatine vs RadonAstatine vs MercuryAstatine vs IridiumAstatine vs GadoliniumAstatine vs BismuthAstatine vs PlatinumAstatine vs CesiumAstatine vs CeriumAstatine vs NeodymiumAstatine vs TerbiumAstatine vs HolmiumAstatine vs ErbiumAstatine vs YtterbiumAstatine vs HafniumAstatine vs OsmiumAstatine vs GoldAstatine vs Polonium Compare Astatine with all Halogens elements | Compare Boron with all Group 13 elementsCompare Boron with all Period 2 elementsBoron vs LithiumBoron vs NeonBoron vs FluorineBoron vs CarbonBoron vs BerylliumBoron vs NitrogenBoron vs Oxygen Compare Boron with all Metalloid elements |