General Information
| Symbol: | B |
| Atomic Number: | 5 |
| Atomic Weight: (Atomic Mass, Molar Mass) | 10.811 |
| Group: | 13 (boron family) |
| IIIB (Old IUPAC), IIIA (CAS) |
| Period: | 2 |
| Block: | p |
Physical Properties
| Density: | 2.34 g/cm3 |
| Atomic Volume: | 4.6 cm2/mole |
| Atomic Radius: | 0.98 angstroms |
| Covalent Radius: | 82 pm |
| Radioactive: | No |
States
| Melting Point: | 2079.0 °C |
| Boiling Point: | 2550.0 °C |
| Heat Of Fusion: | 22.6 kJ/mole |
| Heat Of Vaporization: | 507.8 kJ/mole |
Energy
| Electronegativity: | 2.0 (Pauling Scale) |
| Electron Affinity: | -27 kJ/mol |
| 1st Ionization Energy: | 801 kJ/mol |
| Specific Heat Capacity: | 1.026 J g−1 K−1 |
| Thermal Conductivity: | 27.0 W·m−1·K−1 |
Electrons & Oxidation
| Oxidation States: | 3 |
| Electrons Per Shell: | 2 3 |
| Electron Configuration: | [He] 2s2 2p1 |
| 1s2 2s2 2p1 |
| 1s2 2s2 2p1 |
History
| Discovered In: | 1808 |
| Discovered By: | Sir Humphry Davy, Joseph Louis Gay-Lussac, and Louis Jacques Thénard |
| Discovered At: | England, France |
| Word Origin: | From the Arabic word "buraq" and the Persian word "burah" |
Translations
| English | Boron |
| Deutsch | Bor |
| Lëtzebuergesch | Bor |
| Nederlands | Boor |
| Afrikaans | Boor |
| Frysk | Boar |
| Dansk | Bor |
| Svenska | Bor |
| Norsk | Bor |
| Íslenska | Bór |
| Føroysk | Bor |
| Latin | Borium |
| Français | Bore |
| Español | Boro |
| Catalana | Bor |
| Occitana | Bòr |
| Português | Boro |
| Galego | Boro |
| Italiano | Boro |
| Furlan | Bôr |
| Român | Bor |
| Moldavian | Bor |
| Armãneashte | Boru |
| Русский | Бор |
| Українска | Бор |
| by | Бор |
| Polska | Bor |
| Kaszëbsczi | Bòr |
| Čech | Bor |
| Slovenský | Bór |
| Slovenščina | Bor |
| Hrvatska | Bor |
| Српски | Бор |
| Bosnian | Bor |
| Македонски | Бор |
| Български | Бор |
| Lietuviškai | Boras |
| Lao | Bors |
| Sudovian | Bāras |
| Cymraeg | Boron |
| Gaeilge na hÉireann | Bórón |
| Gàidhlig na h | Bòron |
| Gaelg Vanninagh | Boron |
| Cornish | Boron |
| Brezhoneg | Bor |
| Ελληνική | Βοριο |
| Shqip | Bor |
| Ossetian | Бор |
| Euskera | Boroa |
| Georgian | ბორი |
| Suomi | Boori |
| Eesti | Boor |
| Magyar | Bór |
| Türkçe | Bor |
| Kazakh | Бор |
| Uzbek | Бор |
| Tajik | Bor |
| Mongolian | Бор |
| 日本語 | 硼素 [houso] |
| 中国话 | 硼 |
| ไทย | โบรอน |
| Vietnamese | Bo |
| Bahasa Melayu | Boron |
| العربيه | بورون |
| Il-Malti | Boron |
| עברית | בור |
| Esperanto | Borio |
Links
Misspellings: voron, noron, horon, goron, biron, bkron, blron, bpron, b0ron, b9ron, boeon, bodon, bofon, boton, bo5on, bo4on, borin, borkn, borln, borpn, bor0n, bor9n, borob, borom, boroj, boroh, oron, bron, boon, born, boro, obron, broon, boorn, borno, bboron, booron, borron, boroon, boronn
