What is the specific charge of a 37Li^{7}_{3}\text{Li}37Li nucleus?
4.1×107 C kg−14.1 \times 10^7\text{ C kg}^{-1}4.1×107 C kg−1
5.5×107 C kg−15.5 \times 10^7\text{ C kg}^{-1}5.5×107 C kg−1
7.2×107 C kg−17.2 \times 10^7\text{ C kg}^{-1}7.2×107 C kg−1
2.2×108 C kg−12.2 \times 10^8\text{ C kg}^{-1}2.2×108 C kg−1