Elementary chairge

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The elementary chairge, uisually denotit as e, is the electric chairge carried bi a single proton, or equivalently, the negation (opposite) o the electric chairge carried bi a single electron.[1] This elementary chairge is a fundamental pheesical constant. Tae avoid confusion ower its sign, e is sometimes cried the elementary positive chairge. This chairge haes a measured value o approximately 1.602176565(35)×10−19 coulombs.[2] In the cgs seestem, e is 4.80320425(10)×10−10 statcoulombs.[3]

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  1. Note that the seembol e haes mony ither meanins. Somewhit confusingly, in atomic pheesics, e sometimes denotes the electron chairge, i.e. the negative o the elementary chairge.
  2. "CODATA Value: elementary charge". The NIST Reference on Constants, Units, and Uncertainty. US National Institute of Standards and Technology. June 2011. Retrieved 2011-06-23. External link in |work= (help)
  3. This is derived frae the NIST value and uncertainty, uisin the fact that ane coulomb is exactly 2997924580 statcoulombs. (The conversion is ten times the numerical speed o licht in meters/seicont.)