Theory
Practice Questions
| 1. |
Valence electrons
Difficulty: easy |
1
|
| 2. |
Number of valence electrons
Difficulty: easy |
1
|
| 3. |
Valency
Difficulty: easy |
2
|
| 4. |
Find the number of electrons in ions
Difficulty: easy |
2
|
| 5. |
Valence electrons in atom and ion
Difficulty: medium |
2
|
| 6. |
Gain and loss of electron(s)
Difficulty: medium |
2
|
| 7. |
Valency of elements or atoms
Difficulty: medium |
4
|
| 8. |
Valency identification
Difficulty: medium |
3
|
| 9. |
Formation of compound
Difficulty: hard |
4
|
| 10. |
Formation of ions and valency
Difficulty: hard |
5
|