Q. 274.6( 7 Votes )

The difference in

Answer :

A sodium atom and ion, differ by one electron. Sodium loses one electron to form sodium ion.

for 100 moles, each of sodium atoms and ions there would be a difference of 100 moles of electrons. Thus, the mass of 100 moles of electrons = 5.48002 g


As 1 mole of electron have 6.022 × 1023 electrons


Therefore, mass of 6.022 × 1023electrons =


Mass of one electron = = 9.1 ×10-28 g


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