How do you find the number of protons in an element

- How do you find the number of protons in an element on the periodic table
- How do you find the number of protons in an element in an ion
- How do you find out the number of protons in an element
- How to find number of protons neutrons and electrons
- How to find the number of neutrons in an element
- How to find proton neutron and electron of an element