Periodic Table Element Comparison: Compare Elements - Chlorine vs Boron
Compare Chlorine 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 Chlorine vs Boron with most reliable information about their properties, attributes, facts, uses etc. You can compare Cl vs B on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more. Chlorine and Boron comparison table on more than 90 properties.
Chlorine and Boron Comparison
Facts
| Name | Chlorine | Boron |
|---|---|---|
| Atomic Number | 17 | 5 |
| Atomic Symbol | Cl | B |
| Atomic Weight | 35.453 | 10.811 |
| Phase at STP | Gas | Solid |
| Color | Yellow | Black |
| Metallic Classification | Halogens | Metalloid |
| Group in Periodic Table | group 17 | group 13 |
| Group Name | fluorine family | boron family |
| Period in Periodic Table | period 3 | period 2 |
| Block in Periodic Table | p -block | p -block |
| Electronic Configuration | [Ne] 3s2 3p5 | [He] 2s2 2p1 |
| Electronic Shell Structure (Electrons per shell) | 2, 8, 7 | 2, 3 |
| Melting Point | 171.6 K | 2348 K |
| Boiling Point | 239.11 K | 4273 K |
| CAS Number | CAS7782-50-5 | CAS7440-42-8 |
| Neighborhood Elements | Neighborhood Elements of Chlorine | Neighborhood Elements of Boron |
History
| Parameter | Chlorine | Boron |
|---|---|---|
| History | The element Chlorine was discovered by W. Scheele in year 1774 in Sweden. Chlorine derived its name from the Greek word chloros, meaning 'greenish yellow'. | 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 | W. Scheele (1774) | L. Gay-Lussac and L.J. Thénard (1808) |
| Isolated | W. Scheele (1774) | H. Davy (1808) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
| Property | Chlorine | Boron |
|---|---|---|
| Abundance in Universe | 1000 / 40 | 1 / 0.1 |
| Abundance in Sun | 8000 / 300 | 2 / 0.2 |
| Abundance in Meteorites | 380000 / 160000 | 1600 / 3000 |
| Abundance in Earth's Crust | 170000 / 100000 | 8700 / 17000 |
| Abundance in Oceans | 19870000 / 3470000 | 4440 / 2500 |
| Abundance in Humans | 1200000 / 210000 | 700 / 410 |
Crystal Structure and Atomic Structure
| Property | Chlorine | Boron |
|---|---|---|
| Atomic Volume | 22.4129 cm3/mol | 4.3947 cm3/mol |
| Atomic Radius | 79 pm | 87 pm |
| Covalent Radius | 99 pm | 82 pm |
| Van der Waals Radius | 175 pm | 192 pm |
Atomic Spectrum - Spectral Lines | ||
| Emission Spectrum |  | Not available |
| Absorption Spectrum |  |  |
| Lattice Constant | 622.35, 445.61, 817.85 pm | 506, 506, 506 pm |
| Lattice Angle | π/2, π/2, π/2 | 1.01334, 1.01334, 1.01334 |
| Space Group Name | Cmca | R_ 3m |
| Space Group Number | 64 | 166 |
| Crystal Structure | Base Centered Orthorhombic  | Simple Trigonal  |
Atomic and Orbital Properties
| Property | Chlorine | Boron |
|---|---|---|
| Atomic Number | 17 | 5 |
| Number of Electrons (with no charge) | 17 | 5 |
| Number of Protons | 17 | 5 |
| Mass Number | 35.453 | 10.811 |
| Number of Neutrons | 18 | 6 |
| Shell structure (Electrons per energy level) | 2, 8, 7 | 2, 3 |
| Electron Configuration | [Ne] 3s2 3p5 | [He] 2s2 2p1 |
| Valence Electrons | 3s2 3p5 | 2s2 2p1 |
| Oxidation State | -1, 1, 3, 5, 7 | 3 |
| Atomic Term Symbol (Quantum Numbers) | 2P3/2 | 2P1/2 |
| Shell structure |  |  |
Isotopes and Nuclear Properties
Chlorine has 2 stable naturally occuring isotopes while Boron has 2 stable naturally occuring isotopes.
| Parameter | Chlorine | Boron |
|---|---|---|
| Known Isotopes | 28Cl, 29Cl, 30Cl, 31Cl, 32Cl, 33Cl, 34Cl, 35Cl, 36Cl, 37Cl, 38Cl, 39Cl, 40Cl, 41Cl, 42Cl, 43Cl, 44Cl, 45Cl, 46Cl, 47Cl, 48Cl, 49Cl, 50Cl, 51Cl | 6B, 7B, 8B, 9B, 10B, 11B, 12B, 13B, 14B, 15B, 16B, 17B, 18B, 19B |
| Stable Isotopes | Naturally occurring stable isotopes: 35Cl, 37Cl | Naturally occurring stable isotopes: 10B, 11B |
| Neutron Cross Section | 35.3 | 755 |
| Neutron Mass Absorption | 0.033 | 2.4 |
Chemical Properties: Ionization Energies and electron affinity
| Property | Chlorine | Boron |
|---|---|---|
| Valence or Valency | 5 | 3 |
| Electronegativity | 3.16 Pauling Scale | 2.04 Pauling Scale |
| Electron Affinity | 349 kJ/mol | 26.7 kJ/mol |
| Ionization Energies | 1st: 1251.2 kJ/mol 2nd: 2298 kJ/mol 3rd: 3822 kJ/mol 4th: 5158.6 kJ/mol 5th: 6542 kJ/mol 6th: 9362 kJ/mol 7th: 11018 kJ/mol 8th: 33604 kJ/mol 9th: 38600 kJ/mol 10th: 43961 kJ/mol 11th: 51068 kJ/mol 12th: 57119 kJ/mol 13th: 63363 kJ/mol 14th: 72341 kJ/mol 15th: 78095 kJ/mol 16th: 352994 kJ/mol 17th: 380760 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
| Property | Chlorine | Boron |
|---|---|---|
| Density | 0.003214 g/cm3 | 2.46 g/cm3 |
| Molar Volume | 22.4129 cm3/mol | 4.3947 cm3/mol |
Elastic Properties | ||
| Young Modulus | - | - |
| Shear Modulus | - | - |
| Bulk Modulus | 1.1 GPa | 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 | 0.01 S/m | 0.0001 S/m |
| Resistivity | 100 m Ω | 10000 m Ω |
| Superconducting Point | - | - |
Heat and Conduction Properties | ||
| Thermal Conductivity | 0.0089 W/(m K) | 27 W/(m K) |
| Thermal Expansion | - | 0.000006 /K |
Magnetic Properties | ||
| Magnetic Type | Diamagnetic | Diamagnetic |
| Curie Point | - | - |
| Mass Magnetic Susceptibility | -7.2e-9 m3/kg | -8.7e-9 m3/kg |
| Molar Magnetic Susceptibility | -5.11e-10 m3/mol | -9.41e-11 m3/mol |
| Volume Magnetic Susceptibility | -2.31e-8 | -0.0000214 |
Optical Properties | ||
| Refractive Index | 1.000773 | - |
Acoustic Properties | ||
| Speed of Sound | 206 m/s | 16200 m/s |
Thermal Properties - Enthalpies and thermodynamics
| Property | Chlorine | Boron |
|---|---|---|
| Melting Point | 171.6 K | 2348 K |
| Boiling Point | 239.11 K | 4273 K |
| Critical Temperature | 416.9 K | - |
| Superconducting Point | - | - |
Enthalpies | ||
| Heat of Fusion | 3.2 kJ/mol | 50 kJ/mol |
| Heat of Vaporization | 10.2 kJ/mol | 507 kJ/mol |
| Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
| Parameter | Chlorine | Boron |
|---|---|---|
| CAS Number | CAS7782-50-5 | CAS7440-42-8 |
| RTECS Number | RTECSFO2100000 | RTECSED7350000 |
| DOT Hazard Class | - | - |
| DOT Numbers | 1017 | - |
| EU Number | - | - |
| NFPA Fire Rating | - | 3 |
| NFPA Health Rating | - | 2 |
| NFPA Reactivity Rating | - | 0 |
| NFPA Hazards | - | - |
| AutoIgnition Point | - | - |
| Flashpoint | - | - |
Compare With Other Elements
Compare Chlorine and Boron with other elements of the periodic table.
Compare Chlorine with all Group 17 elementsCompare Chlorine with FluorineCompare Chlorine with BromineCompare Chlorine with IodineCompare Chlorine with AstatineCompare Chlorine with Tennessine Compare Chlorine with all Period 3 elementsCompare Chlorine with SodiumCompare Chlorine with MagnesiumCompare Chlorine with AluminiumCompare Chlorine with SiliconCompare Chlorine with PhosphorusCompare Chlorine with SulfurCompare Chlorine with Argon Compare Chlorine with all Halogens elements | Compare Boron with all Group 13 elementsBoron vs Aluminium ComparisonBoron vs Gallium ComparisonBoron vs Indium ComparisonBoron vs Thallium ComparisonBoron vs Nihonium Comparison Compare Boron with all Period 2 elementsBoron vs Lithium ComparisonBoron vs Beryllium ComparisonBoron vs Carbon ComparisonBoron vs Nitrogen ComparisonBoron vs Oxygen ComparisonBoron vs Fluorine ComparisonBoron vs Neon Comparison Compare Boron with all Metalloid elements |