nucleus-of-anelement
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| The atomic number and mass number of an element are 16 and 32 respectively |
|
1 | 922 | July 17, 2019 |
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| The atomic number and mass number of an element are 16 and 32 respectively |
|
1 | 922 | July 17, 2019 |