Mass of an electron = 9.11 × 10-31 kg
∴ Mass of 9.11 × 10-31 kg = 1 electron
Now, mass of 1g, i.e., 10-3 kg will have{1\over9.11 \times 10^{-31}} \times 10^{-3} electrons
= 1.098 × 1027 electron.
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