Chlorine has two common isotopes, $^{35}\text{Cl}$ and $^{37}\text{Cl}$. The information for these two isotopes is shown. Which statement gives the reason that both isotopes are the same element?
- ABoth have the same number of electron shells.
- BBoth have the same number of protons.
- CBoth have $7$ outer shell electrons.
- D$^{37}\text{Cl}$ has $2$ more neutrons than $^{35}\text{Cl}$.