Some of the particles comprising atoms react to each other in a way that scientists categorize as electric charge. There are two fundamental types of electric charge: positive and negative. Identify the respective charges of the following particles :
a.Electrons
b.Protons
c.Neutrons
What would happen if you placed two electrons near each other in free space? Would they repel each other or attract each other ? How about two protons ? How about an electron and a proton? How about a neutron and a proton?