6.7×10−34 J6.7 \times 10^{-34} \mathrm{~J}6.7×10−34 J
1.6×10−31 J1.6 \times 10^{-31} \mathrm{~J}1.6×10−31 J
1.9×10−31 J1.9 \times 10^{-31} \mathrm{~J}1.9×10−31 J
