Practice Questions
| 1. |
Discovery of canal rays
Difficulty: easy |
3
|
| 2. |
Thomson's atomic theory
Difficulty: easy |
2
|
| 3. |
Valence electrons
Difficulty: easy |
1
|
| 4. |
Application of isotopes
Difficulty: easy |
1
|
| 5. |
Electron distribution in elements
Difficulty: medium |
2
|
| 6. |
Gain and loss of electron(s)
Difficulty: medium |
2
|
| 7. |
Calculate the mass number
Difficulty: medium |
3
|
| 8. |
Calculation of average atomic mass
Difficulty: medium |
2
|
| 9. |
Conclusions from gold foil experiment
Difficulty: hard |
4
|
| 10. |
Formation of ions and valency
Difficulty: hard |
5
|