How to calculate the amount of protons in an atom

- How to calculate the number of protons in an atom
- How to calculate the amount of protons neutrons and electrons in an atom
- How do you calculate the amount of protons in an atom
- How to calculate no of protons in an atom
- How to calculate the number of protons and neutrons in an atom
- How to calculate the number of protons and electrons in an atom
- How to find atomic number
- How we can find atomic number