An object of mass \( 1 \mathrm{~kg} \) contains \( 4 \times 10^{20} \) atoms. If one electron is...

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An object of mass \( 1 \mathrm{~kg} \) contains \( 4 \times 10^{20} \) atoms. If one electron is removed from every atom of the solid, the charge gained by the solid in \( 1 \mathrm{~g} \) is
(a) \( 2.8 \mathrm{C} \)
(b) \( 6.4 \times 10^{-2} \mathrm{C} \)
(c) \( 3.6 \times 10^{-3} \mathrm{C} \)
(d) \( 9.2 \times 10^{-4} \mathrm{C} \)
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