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Question Question 18
Complete the table below by identifying A, B, C, D, E and F.
| Element | Symbol | Number of protons | Number of neutrons | Number of electrons |
|---|---|---|---|---|
| Fluorine | 9F19 | 9 | A | B |
| Aluminium | C | D | 14 | 13 |
| Potassium | 19K39 | E | F | 19 |
A → 10
B → 9
C → 13Al27
D → 13
E → 19
F → 20
Completed table is shown below:
| Element | Symbol | Number of protons | Number of neutrons | Number of electrons |
|---|---|---|---|---|
| Fluorine | 9F19 | 9 | 10 | 9 |
| Aluminium | 13Al27 | 13 | 14 | 13 |
| Potassium | 19K39 | 19 | 20 | 19 |