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deuteron rms charge radius  Value  2.1413 x 10-15 m  Standard uncertainty  0.0025 x 10-15 m   Relative standard uncertainty   1.2 x 10-3  Concise form  2.1413(25) x 10-15 m       Click here for correlation coefficient of this constant with other constants Source: 2014 CODATA      recommended values  Definition of uncertainty       Correlation coefficient with any other constant