Chemistry
Grade-9
Easy
Question
How many electrons does potassium K contain?
- 19
- 39
- 20
- 40
Hint:
For a neutral atom number of proton is equal to number of electron.
The correct answer is: 19
- For a neutral atom number of proton is equal to number of electron.
- Atomic number = number of protons.
- Atomic number of potassium is 19, hence number of electron is 19.
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