How to find protons in an atom?

Part 1. Calculating Protons, Electrons, and Neutrons. Get a periodic table of elements. Find your element on the periodic table. Locate the element's atomic number. Determine the number of electrons. Look for the atomic mass of the element. Subtract the atomic number from the atomic mass. read more

How to Find the Number of Protons, Neutrons, and Electrons. Finding the number of protons, neutrons, and electrons in a given element isn't as hard as it sounds. read more

Follow these simple steps to find the number of protons, neutrons, and electrons for an atom of any element. Get Basic Information About Elements You'll need to gather basic information about the elements to find the number of protons, neutrons, and electrons. read more

The atomic number is the number of protons in an atom of an element. In our example, krypton's atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus. The interesting thing here is that every atom of krypton contains 36 protons. read more