This is my Helium atom. It is the second on the periodic table. This means it has 2 protons and 2 neutrons. On the bottom of the box, it has 4.00 so that is 4 electrons! The parts of an atom are neutrons, protons, and electrons. In my model, the red spheres are the electrons. The circle around the nucleus in a dust cloud. The nucleus is the middle of the atom. In the middle, there are the protons and neutrons. The protons are +1, the neutrons are neutral, and the electrons are -1. So therefor the this atom is an even atom. There is +1 and -1 so it is like this: +1-1=0.