Periodic Table Element Comparison: Compare Elements - Beryllium vs Fluorine
Compare Beryllium and Fluorine
Compare Beryllium and Fluorine 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 Beryllium vs Fluorine with most reliable information about their properties, attributes, facts, uses etc. You can compare Be vs F on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
| Name | Beryllium | Fluorine |
| Atomic Number | 4 | 9 |
| Atomic Symbol | Be | F |
| Atomic Weight | 9.012182 | 18.9984032 |
| Phase at STP | Solid | Gas |
| Color | SlateGray | Colorless |
| Metallic Classification | Alkaline Earth Metal | Halogens |
| Group in Periodic Table | group 2 | group 17 |
| Group Name | beryllium family | fluorine family |
| Period in Periodic Table | period 2 | period 2 |
| Block in Periodic Table | s -block | p -block |
| Electronic Configuration | [He] 2s2 | [He] 2s2 2p5 |
| Electronic Shell Structure (Electrons per shell) | 2, 2 | 2, 7 |
| Melting Point | 1560 K | 53.5 K |
| Boiling Point | 2743 K | 85.03 K |
| CAS Number | CAS7440-41-7 | CAS7782-41-4 |
| Neighborhood Elements | Neighborhood Elements of Beryllium | Neighborhood Elements of Fluorine |
History
| History | The element Beryllium was discovered by N. Vauquelin in year 1798 in France. Beryllium derived its name from beryl, a mineral. | The element Fluorine was discovered by A.-M. Ampère in year 1810 in France. Fluorine derived its name from the Latin fluere, meaning 'to flow'. |
| Discovery | N. Vauquelin (1798) | A.-M. Ampère (1810) |
| Isolated | F. Wöhler and A. Bussy (1828) | H. Moissan (1886) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Abundance in Universe | 1 / 0.1 | 400 / 30 |
| Abundance in Sun | 0.1 / 0.01 | 500 / 30 |
| Abundance in Meteorites | 30 / 70 | 89000 / 96000 |
| Abundance in Earth's Crust | 1900 / 4300 | 540000 / 590000 |
| Abundance in Oceans | 0.0006 / 0.00041 | 1300 / 420 |
| Abundance in Humans | 0.4 / 0.3 | 37000 / 12000 |
Crystal Structure and Atomic Structure
| Atomic Volume | 4.8767 cm3/mol | 11.202 cm3/mol |
| Atomic Radius | 112 pm | 42 pm |
| Covalent Radius | 90 pm | 71 pm |
| Van der Waals Radius | 153 pm | 147 pm |
| Atomic Spectrum |  |  |
| Lattice Constant | 228.58, 228.58, 358.43 pm | 550, 328, 728 pm |
| Lattice Angle | π/2, π/2, 2 π/3 | π/2, π/2, π/2 |
| Space Group Name | P63/mmc | C12/c1 |
| Space Group Number | 194 | 15 |
| Crystal Structure | Simple Hexagonal  | Base Centered Monoclinic  |
Atomic and Orbital Properties
| Atomic Number | 4 | 9 |
| Number of Electrons (with no charge) | 4 | 9 |
| Number of Protons | 4 | 9 |
| Mass Number | 9.012182 | 18.9984032 |
| Number of Neutrons | 5 | 10 |
| Shell structure (Electrons per energy level) | 2, 2 | 2, 7 |
| Electron Configuration | [He] 2s2 | [He] 2s2 2p5 |
| Valence Electrons | 2s2 | 2s2 2p5 |
| Oxidation State | 2 | -1 |
| Atomic Term Symbol (Quantum Numbers) | 1S0 | 2P3/2 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Beryllium has 1 stable naturally occuring isotopes while Fluorine has 1 stable naturally occuring isotopes.
| Known Isotopes | 5Be, 6Be, 7Be, 8Be, 9Be, 10Be, 11Be, 12Be, 13Be, 14Be, 15Be, 16Be | 14F, 15F, 16F, 17F, 18F, 19F, 20F, 21F, 22F, 23F, 24F, 25F, 26F, 27F, 28F, 29F, 30F, 31F |
| Stable Isotopes | Naturally occurring stable isotopes: 9Be | Naturally occurring stable isotopes: 19F |
| Neutron Cross Section | 0.0092 | 0.0096 |
| Neutron Mass Absorption | 0.00003 | 0.00002 |
Chemical Properties: Ionization Energies and electron affinity
| Valence or Valency | 2 | 1 |
| Electronegativity | 1.57 Pauling Scale | 3.98 Pauling Scale |
| Electron Affinity | 0 kJ/mol | 328 kJ/mol |
| Ionization Energies | 1st: 899.5 kJ/mol 2nd: 1757.1 kJ/mol 3rd: 14848.7 kJ/mol 4th: 21006.6 kJ/mol | 1st: 1681 kJ/mol 2nd: 3374.2 kJ/mol 3rd: 6050.4 kJ/mol 4th: 8407.7 kJ/mol 5th: 11022.7 kJ/mol 6th: 15164.1 kJ/mol 7th: 17868 kJ/mol 8th: 92038.1 kJ/mol 9th: 106434.3 kJ/mol |
Physical Properties
| Density | 1.848 g/cm3 | 0.001696 g/cm3 |
| Molar Volume | 4.8767 cm3/mol | 11.202 cm3/mol |
Elastic Properties | ||
| Young Modulus | 287 | - |
| Shear Modulus | 132 GPa | - |
| Bulk Modulus | 130 GPa | - |
| Poisson Ratio | 0.032 | - |
Hardness - Tests to Measure of Hardness of Element | ||
| Mohs Hardness | 5.5 MPa | - |
| Vickers Hardness | 1670 MPa | - |
| Brinell Hardness | 600 MPa | - |
Electrical Properties | ||
| Electrical Conductivity | 25000000 S/m | - |
| Resistivity | 4e-8 m Ω | - |
| Superconducting Point | 0.026 | - |
Heat and Conduction Properties | ||
| Thermal Conductivity | 190 W/(m K) | 0.0277 W/(m K) |
| Thermal Expansion | 0.0000113 /K | - |
Magnetic Properties | ||
| Magnetic Type | Diamagnetic | - |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | -1.26e-8 m3/kg | - |
| Molar Magnetic Susceptibility | -1.136e-10 m3/mol | - |
| Volume Magnetic Susceptibility | -0.00002328 | - |
Optical Properties | ||
| Refractive Index | - | 1.000195 |
Acoustic Properties | ||
| Speed of Sound | 13000 m/s | - |
Thermal Properties - Enthalpies and thermodynamics
| Melting Point | 1560 K | 53.5 K |
| Boiling Point | 2743 K | 85.03 K |
| Critical Temperature | - | 144.13 K |
| Superconducting Point | 0.026 | - |
Enthalpies | ||
| Heat of Fusion | 7.95 kJ/mol | 0.26 kJ/mol |
| Heat of Vaporization | 297 kJ/mol | 3.27 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| CAS Number | CAS7440-41-7 | CAS7782-41-4 |
| RTECS Number | RTECSDS1750000 | RTECSLM6475000 |
| DOT Hazard Class | 6.1 | 2.3 |
| DOT Numbers | 1567 | 9192 |
| EU Number | - | EU231-954-8 |
| NFPA Fire Rating | 1 | 0 |
| NFPA Hazards | - | Oxidizing Agent, Water Reactive |
| NFPA Health Rating | 3 | 4 |
| NFPA Reactivity Rating | 0 | 4 |
| AutoIgnition Point | - | - |
| Flashpoint | - | - |
Compare With Other Elements
Compare Beryllium with all Group 2 elementsBeryllium vs MagnesiumBeryllium vs CalciumBeryllium vs StrontiumBeryllium vs BariumBeryllium vs Radium Compare Beryllium with all Period 2 elementsBeryllium vs LithiumBeryllium vs BoronBeryllium vs CarbonBeryllium vs NitrogenBeryllium vs OxygenBeryllium vs FluorineBeryllium vs Neon Compare Beryllium with all Alkaline Earth Metal elements | Compare Fluorine with all Group 17 elementsCompare Fluorine with all Period 2 elementsFluorine vs LithiumFluorine vs BerylliumFluorine vs BoronFluorine vs CarbonFluorine vs NitrogenFluorine vs OxygenFluorine vs Neon Compare Fluorine with all Halogens elements |