Number of Protons - What are Protons?
Protons are much larger and heavier than electrons and have a positive charge. Protons are positively charged and located in the nucleus together with the neutrons. Protons have a charge of +1 and a mass of approximately 1 atomic mass unit (amu).
Number of Protons - How to find the Atomic Number of an element
Every element has a unique Element Symbol and a unique Atomic Number which can be accessed via the Periodic Table with Atomic Mass.
The atomic number = The number of protons in the atom of an element.