My Atom

Hi everyone! This is my atom. The blue and green circles are protons and neutrons. The atomic mass on the periodic table is 4 for Helium, and the atomic number is 2. You take the 4, and minus the 2 and get 2. That is the amount of protons and the amount of neutrons. All together, there are 4. Then you have to add the electrons witch is always the same number of neutrons and it is 2. The electrons are an orbit. It makes the electron cloud.