Practice Questions
| 1. |
Discovery of subatomic particles
Difficulty: easy |
3
|
| 2. |
Calculate the number of electrons and protons I
Difficulty: medium |
2
|
| 3. |
Calculate the number of electrons and protons II
Difficulty: medium |
3
|
| 4. |
Find the number of electrons in ions
Difficulty: medium |
4
|