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| physical object > natural object > particle > element > column grouped element > inert gas > radon |
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| radon comparison table | |||||||||
| Subject | has ocean residence time | has occurrence | has ocean oxidation state | is a kind of | has state | has group | has synonym | has image | has ocean concentration |
|---|---|---|---|---|---|---|---|---|---|
| inert gas | atmosphere of a planet or asteroid | atmophile element | gas at standard temperature and pressure | 18 | noble gas | ||||
| unclassified oceanic element | unknown | ocean | oceanic element | atom | unknown | ||||
| radon | unknown | atmosphere of a planet or asteroid | 0 | unclassified oceanic element | gas at standard temperature and pressure | 18 | noble gas |  | unknown |
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