Practice Questions
| 1. |
Bohr's atomic model
Difficulty: easy |
3
|
| 2. |
Electrons in ions
Difficulty: easy |
4
|
| 3. |
Gain and loss of electrons
Difficulty: medium |
2
|
| 4. |
Subatomic particles
Difficulty: medium |
3
|
| 5. |
Electron distribution or electronic configuration of elements
Difficulty: medium |
2
|
| 6. |
Valency identification
Difficulty: medium |
3
|
| 7. |
Valencies of some elements
Difficulty: hard |
6
|