The following data refer to four metal atoms or ions. Q: charge $+3$, electrons $10$, nucleon number $27$. R: charge $+2$, proton number $12$, nucleon number $24$. S: charge $+2$, electrons $10$, nucleon number $26$. T: proton number $16$, electrons $16$. Which two atoms or ions are isotopes of the same element?
- AQ and R
- BQ and T
- CR and S
- DS and T