Beryllium 3d Model. The four styrofoam balls are the protons in the nucleus and the other five are the neutrons. 1 finger drag or left mouse button pan.
Together they represent the stable isotope of beryllium. This tells me that there are four each of protons neutrons and electrons in the atom. Together they represent the stable isotope of beryllium.
Paint four styrofoam balls one color and five styrofoam balls a different color.
Let them dry completely. Double tap or double click on background zoom. Draw a bohr model of beryllium draw a bohr model of chlorine activity. Let them dry completely.
