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abstraction > mathematical concept > number > constant > fundamental physical constant > atomic constant > classical electron radius |
classical electron radius comparison table |
Subject | has equation | is an instance of | has unit | has uncertainty | is a kind of | has symbol | has value |
---|---|---|---|---|---|---|---|
atomic constant | fundamental physical constant | changes in value are due solely to an increase in measurement accuracy or convention | |||||
radius | length unit | length | |||||
classical electron radius | radius | 0.00000031 × 10-15 m | re | 2.817940285 × 10-15 m |
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