Study the table below and use it to answer the questions that follow. (The letters do not represent the actual symbols of the elements).
|Element ||S ||P ||Q ||R ||T |
| 5||20 ||3 ||18 ||5 |
| Atomic mass|| 10||40 ||7 ||40 ||11 |
- Select two letters that represent a pair of isotopes
- Give the number of neutrons in an atom of element T