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2014-10-01T13:26:39+03:00
1 u = 1,67 * 10 la -27 kg
1 electron are masa = 1,67 * 10 la -27 kg/1840 = 9,07609 * 10 la -31 kg
1 mol electroni cuprinde 6,023 * 10 la 23 electroni
=> masa electronilor = 9,07609 * 10 la -31 * 6,023 * 10 la 23 = 54,56653 * 10 la - 8 kg
3 3 3