Question
Complete the following table relating to the atomic structure of some elements.
| Element Symbol | Atomic | Mass | Numbers of neutrons | Number of Electrons | Number of Protons |
| Li | 3 | 6 |
|
|
|
| Cl | 17 |
| 20 |
|
|
| Na |
|
| 12 |
| 11 |
| Al |
| 27 |
|
| 13 |
| S |
| 32 | 16 |
|
|