The table below shows information about four different nuclei.
| 210Pb82lead-210\begin{array}{c} 210 \\ \text{Pb} \\ 82 \\ \text{lead-210} \end{array}210Pb82lead-210 | 210Bi83bismuth-210\begin{array}{c} 210 \\ \text{Bi} \\ 83 \\ \text{bismuth-210} \end{array}210Bi83bismuth-210 | 210Po84polonium-210\begin{array}{c} 210 \\ \text{Po} \\ 84 \\ \text{polonium-210} \end{array}210Po84polonium-210 | 209Bi83bismuth-209\begin{array}{c} 209 \\ \text{Bi} \\ 83 \\ \text{bismuth-209} \end{array}209Bi83bismuth-209 |
Which two nuclei have the same number of neutrons?
Lead-210 and bismuth-210
Bismuth-210 and bismuth-209
Polonium-210 and bismuth-209
Lead-210 and polonium-210