Krypton (Kr)
General Properties
| Symbol | Kr |
|---|---|
| Atomic Number | 36 |
| Atomic Weight | 83.798 |
| Group |
18 (noble gases or helium family/neon family)
VIII (IUPAC), VIIIA (CAS)
Gas, Diamagnetic, Noble Gas, Nonmetal, Stable, Natural
|
| Period | 4 |
| Block | p |
Physical Properties
| Density | 0.00374 g/cm3 |
|---|---|
| Atomic Volume | 32.2 cm3/mole |
| Atomic Radius | 1.03 angstroms |
| Covalent Radius | 110 pm |
| Crust Abundance | 1.5E-8% |
| Crystal Structure | Cubic: Face centered |
| Color | Colorless |
States
| Melting Point | -157.0 °C |
|---|---|
| Boiling Point | -152.0 °C |
| Heat of Fusion | 1.638 kJ/mol |
| Heat of Vaporization | 9.029 kJ/mol |
Energy
| Electronegativity | 3.0 (Pauling Scale) |
|---|---|
| Electron Affinity | 0 kJ/mol |
| 1st Ionization Energy | 1356 kJ/mol |
| 2. Ionization Energy | 2350.4 kJ/mol |
| 3. Ionization Energy | 3565 kJ/mol |
| 4. Ionization Energy | 5070 kJ/mol |
| 5. Ionization Energy | 6240 kJ/mol |
| 6. Ionization Energy | 7570 kJ/mol |
| 7. Ionization Energy | 10710 kJ/mol |
| 8. Ionization Energy | 12138 kJ/mol |
| 9. Ionization Energy | 22274 kJ/mol |
| 10. Ionization Energy | 25880 kJ/mol |
| 11. Ionization Energy | 29700 kJ/mol |
| 12. Ionization Energy | 33800 kJ/mol |
| 13. Ionization Energy | 37700 kJ/mol |
| 14. Ionization Energy | 43100 kJ/mol |
| 15. Ionization Energy | 47500 kJ/mol |
| 16. Ionization Energy | 52200 kJ/mol |
| 17. Ionization Energy | 57100 kJ/mol |
| 18. Ionization Energy | 61800 kJ/mol |
| 19. Ionization Energy | 75800 kJ/mol |
| 20. Ionization Energy | 80400 kJ/mol |
| 21. Ionization Energy | 85300 kJ/mol |
| 22. Ionization Energy | 90400 kJ/mol |
| 23. Ionization Energy | 96300 kJ/mol |
| 24. Ionization Energy | 101400 kJ/mol |
| 25. Ionization Energy | 111100 kJ/mol |
| 26. Ionization Energy | 116290 kJ/mol |
| 27. Ionization Energy | 282500 kJ/mol |
| 28. Ionization Energy | 296200 kJ/mol |
| 29. Ionization Energy | 311400 kJ/mol |
| 30. Ionization Energy | 326200 kJ/mol |
| Specific Heat Capacity | 0.248 J g−1 K−1 |
| Thermal Conductivity | 0.00949 W·m−1·K−1 |
Electrons & Oxidation
| Oxidation States | 0 |
|---|---|
| Electrons Per Shell | 2 8 18 8 |
| Electron Configuration | [Ar] 3d10 4s2 4p6 |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 | |
|
Orbital Diagram
1s ↿⇂ 2s ↿⇂ 2p ↿⇂ ↿⇂ ↿⇂ 3s ↿⇂ 3p ↿⇂ ↿⇂ ↿⇂ 3d ↿⇂ ↿⇂ ↿⇂ ↿⇂ ↿⇂ 4s ↿⇂ 4p ↿⇂ ↿⇂ ↿⇂ 4d 4f |
|
Nuclear
| Radioactive | No |
|---|
Media
- Description
- Colorless, odorless, tasteless rare noble gas.
- Uses
- Used in lighting products. Some is used as inert filler-gas in incandescent bulbs. Some is mixed with argon in fluorescent lamps. The most important use is in flashing stroboscopic lamps that outline airport runways.
- Sources
- Forms 1 millionth of the atmosphere. Obtained from production of liquid air.
- Pronounciation (English)
- KRIP-ton
Translations
| Afrikaans | Kripton | |
| Aragonese | Criptón | |
| العربية | كربتون | |
| Armãneashte | Cripton | |
| asturianu | Criptón | |
| azərbaycan | Kripton | |
| български | Криптон | |
| বাংলা | ক্রিপ্টন | |
| brezhoneg | Kripton | |
| bosanski | Kripton | |
| Byelorussian | Крыптон | |
| Cebuano | Kripton | |
| čeština | Krypton | |
| Chuvash | Криптон | |
| Cymraeg | Criptó | |
| dansk | Krypton | |
| Deutsch | Krypton | |
| Ελληνικά | Κρυπτο | |
| English | Krypton | |
| esperanto | Kriptono | |
| español | Criptón | |
| eesti | Krüptoon | |
| euskara | Kriptona | |
| فارسی | کریپتون | |
| suomi | Krypton | |
| føroyskt | Krypton | |
| français | Krypton | |
| furlan | Criton | |
| Frysk | Krypton | |
| Gaeilge | Crioptón | |
| Gàidhlig | Criopton | |
| galego | Cripton | |
| ગુજરાતી | ક્રિપ્ટૉનનો | |
| Gaelg | Krypton | |
| Hakka Chinese | Khiet (氪) | |
| עברית | קריפטון | |
| हिन्दी | क्रिप्टन | |
| hrvatski | Kripton | |
| magyar | Kripton | |
| հայերեն | Կրիպտոն | |
| Indonesia | Kripton | |
| íslenska | Krypton | |
| italiano | Kripto | |
| 日本語 | クリプトン | |
| ქართული | კრიპტონი | |
| کٲشُر | Kriptón | |
| қазақ тілі | Криптон | |
| 한국어 | 크립톤 | |
| kurdî | Kripton | |
| Komi | Криптон | |
| kernewek | Crypton | |
| кыргызча | Криптон | |
| Latin | Krypton | |
| Lëtzebuergesch | Krypton | |
| Lombard | Cript | |
| lingála | Kliptoni | |
| lietuvių | Kriptonas | |
| latviešu | Kriptons | |
| Mari | Криптон | |
| Māori | Krypton | |
| македонски | Криптон | |
| മലയാളം | ക്രിപ്റ്റോണ് | |
| монгол | Криптон | |
| Мокшан | Криптон | |
| Melayu | Kripton | |
| Malti | Kripton | |
| Nahuatl | Kriptón | |
| Nederlands | Krypton | |
| norsk | Krypton | |
| Occitan | Cripton | |
| ирон | Криптон | |
| polski | Krypton | |
| português | Krípton | |
| Runasimi | Kriptun | |
| română | Kripton | |
| русский | Криптон | |
| slovenčina | Kryptón | |
| slovenščina | Kripton | |
| Samoan | Kryptoni | |
| Samogitian | Kriptuons | |
| shqip | Kripton, ²Kryptoni | |
| српски | Криптон | |
| Southern Sotho | Kriptone | |
| svenska | Krypton | |
| Kiswahili | Kriptoni | |
| தமிழ் | கிரிப்டோன் | |
| тоҷикӣ | Криптон | |
| ไทย | คริปทอน | |
| Türkçe | Kripton | |
| ئۇيغۇرچە | كرىپتون | |
| українська | Криптон | |
| o‘zbek | Kripton | |
| Tiếng Việt | Kripton | |
| Võro | Krüptoon | |
| 中文 | 氪 |
History
- Discovered In
- 1898
- Discovered By
- Sir William Ramsay, Morris W. Travers
- Discovered At
- Great Britain
- Word Origin
- From the Greek word "kryptos" meaning "hidden"