1.2×10−19 J1.2 \times 10^{-19} \mathrm{~J}1.2×10−19 J
1.9×10−19 J1.9 \times 10^{-19} \mathrm{~J}1.9×10−19 J
3.3×10−19 J3.3 \times 10^{-19} \mathrm{~J}3.3×10−19 J
3.9×10−19 J3.9 \times 10^{-19} \mathrm{~J}3.9×10−19 J