6.022×10236.022 \times 10^{23}6.022×1023
6.022×10−236.022 \times 10^{-23}6.022×10−23
6.203×10236.203 \times 10^{23}6.203×1023
6.203×10−236.203 \times 10^{-23}6.203×10−23