9.4×1019C9.4 \times 10^{19} \mathrm{C}9.4×1019C
4.6×10−19C4.6\times 10^{-19}\mathrm{C}4.6×10−19C
6.2×10−19C6.2\times 10^{-19}\mathrm{C}6.2×10−19C
3.2×10−19C3.2\times 10^{-19}\mathrm{C}3.2×10−19C
