Bor (B)
Allgemeine Eigenschaften
| Symbol | B |
|---|---|
| Ordnungszahl | 5 |
| Atomgewicht | 10.811 |
| Gruppe |
13 (Borfamilie)
IIIB (IUPAC), IIIA (CAS)
Solid, Diamagnetic, Insulator, Stable, Natural, Metalloid
|
| Periode | 2 |
| Block | p |
Physikalische Eigenschaften
| Dichte | 2.34 g/cm3 |
|---|---|
| Atomvolumen | 4.6 cm3/mole |
| Atomradius | 0.98 angstroms |
| Kovalenzradius | 82 pm |
| Crust Abundance | 0.00086% |
| Crystal Structure | Rhombohedral |
| Color | Black |
Zustände
| Schmelzpunkt | 2079.0 °C |
|---|---|
| Siedepunkt | 2550.0 °C |
| Schmelzwärme | 22.6 kJ/mol |
| Verdampfungswärme | 507.8 kJ/mol |
Energien
| Elektronengravität | 2.0 (Pauling-Skala) |
|---|---|
| Elektronenaffinität | 26.7 kJ/mol |
| 1. Ionisierungsenergie | 801 kJ/mol |
| 2. Ionization Energy | 2427.1 kJ/mol |
| 3. Ionization Energy | 3659.7 kJ/mol |
| 4. Ionization Energy | 25025.8 kJ/mol |
| 5. Ionization Energy | 32826.7 kJ/mol |
| Spezifische Wärmekapazität | 1.026 J g−1 K−1 |
| Wärmeleitfähigkeit | 27.0 W·m−1·K−1 |
Elektronen & Oxidation
| Oxidationsstufen | 3 |
|---|---|
| Elektronen pro Schale | 2 3 |
| Elektronenkonfiguration | [He] 2s2 2p1 |
| 1s2 2s2 2p1 | |
|
Orbital Diagramm
1s ↿⇂ 2s ↿⇂ 2p ↿ |
|
Nuclear
| Radioaktiv | Nein |
|---|
Medien
- Description
- Hard, brittle, lustrous black semimetal. Exists in the earth's crust at an average proportion of about 10 parts per million.
- Uses
- Used with titanium & tungsten to make heat resistant alloys for jets & rockets.
- Sources
- Obtained from kernite, a kind of borax (Na2B4O7.10H2O). High purity boron is produced by electrolysis of molten potassium fluroborate and potassium chloride (KCl).
- Pronounciation (English)
- BO-ron
Übersetzungen
| Afrikaans | Boor | |
| Aragonese | Boro | |
| العربية | بورون | |
| Armãneashte | Boru | |
| asturianu | Boru | |
| azərbaycan | Bor | |
| български | Бор | |
| বাংলা | বোরন | |
| brezhoneg | Bor | |
| bosanski | Bor | |
| Byelorussian | Бор | |
| Cebuano | Boro | |
| čeština | Bor | |
| Chuvash | Бор | |
| Cymraeg | Bor | |
| dansk | Bor | |
| Deutsch | Bor | |
| Ελληνικά | Βοριο | |
| English | Boron | |
| esperanto | Borio | |
| español | Boro | |
| eesti | Boor | |
| euskara | Boroa | |
| فارسی | بور | |
| suomi | Boori | |
| føroyskt | Bor | |
| français | Boron | |
| furlan | Bôr | |
| Frysk | Boar | |
| Gaeilge | Bórón | |
| Gàidhlig | Bòron | |
| galego | Boro | |
| ગુજરાતી | બોરૉનનો | |
| Gaelg | Boron | |
| Hakka Chinese | Phìn (硼) | |
| עברית | בור | |
| हिन्दी | बोरॉन् | |
| hrvatski | Bor | |
| magyar | Bór | |
| հայերեն | Բոր | |
| Indonesia | Boron | |
| íslenska | Bór | |
| italiano | Boro | |
| 日本語 | ホウ素 | |
| ქართული | ბორი | |
| کٲشُر | Bòr | |
| қазақ тілі | Бор | |
| 한국어 | 붕소 | |
| kurdî | Boron | |
| Komi | Бор | |
| kernewek | Boron | |
| кыргызча | Бор | |
| Latin | Borium | |
| Lëtzebuergesch | Bor | |
| Lombard | Bòor | |
| lingála | Bolo | |
| lietuvių | Boras | |
| latviešu | Bors | |
| Mari | Бор | |
| Māori | Pūtiwha | |
| македонски | Бор | |
| മലയാളം | ബോറോണ് | |
| монгол | Бор | |
| Мокшан | Бора | |
| Melayu | Boron | |
| Malti | Boron, ²Boru | |
| Nahuatl | Xacoiztatl | |
| Nederlands | Boor | |
| norsk | Bor | |
| Occitan | Bòr | |
| ирон | Бор | |
| polski | Bor | |
| português | Boro | |
| Runasimi | Boru | |
| română | Bor | |
| русский | Бор | |
| slovenčina | Bór | |
| slovenščina | Bor | |
| Samoan | Borimi | |
| Samogitian | Buors | |
| shqip | Bor | |
| српски | Бор | |
| Southern Sotho | Borone | |
| svenska | Bor | |
| Kiswahili | Boroni | |
| தமிழ் | போரோன் | |
| тоҷикӣ | Бор | |
| ไทย | โบรอน | |
| Türkçe | Bor | |
| ئۇيغۇرچە | بور | |
| українська | Бор | |
| o‘zbek | Bor | |
| Tiếng Việt | Bo | |
| Võro | Buur | |
| 中文 | 硼 |
Geschichte
- Entdeckt
- 1808
- Entdeckt durch
- Sir Humphry Davy, Joseph Louis Gay-Lussac, and Louis Jacques Thénard
- Entdeckt in
- England, France
- Wortherkunft
- From the Arabic word "buraq" and the Persian word "burah"