| Krypton |
| Symbol: Kr Atomic Number: 36 Atomic Mass: 83.8 atomic mass units Melting Point: -157.2* C (-250.959 * F) Boiling Point: -153.4* C (-244.12* F) Protons/ Electrons: 36 of each Density at 293K: 3.74 g/cm3 |
| *The Basics* |
| *What a Krypton Atom Looks Like* |
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| *Energy Levels* |
| Number of Energy Levels: 4 First Energy Level: 2 electrons Second Energy Level: 8 electrons Third Energy Level: 18 electrons Fourth Energy Level: 8 electrons |
| *Isotopes* |
| Krypton has 15 known Isotopes. The stable ones are Kr-78, Kr-80, Kr-82, Kr-83, Kr-84, and Kr-86. |
| *History* |
| Krypton was discovered in 1898 by Sir Willian Ramsey. Krypton comes from the greed word, kryptos, meaning hidden. It is gathered by distillation from liquid air. |
| *Other* |
| The following websites were used to create this website report: http://www.chemicalelements.com/elements/kr.html |
| Krypton is one of the rarest gasses in the world, making up only 1/ 1 mil of the volume of the atmosphere. Krypton is an odorless, colorless gas, and is non-reactive to all elements except for flourine gas. |
| *Uses* |
| Krypton is used as a low-pressure filling gas for fluorescent lights. It can also be used in specific camera flashes. |
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| Krypton is commonly used in lights like these. |