Electron donor

Imagine that you have a bunch of toys that you don't really like and you want to give them away to someone who does like them. Now, think of atoms as similar to toys, in that they have a bunch of tiny particles inside called electrons. Sometimes, certain atoms have extra electrons that they don't really want or need, kind of like having too many toys. These atoms are called electron donors, because they can give away their extra electrons to other atoms that really want or need them, like a friend who really wants your toys.

When an atom gives away an electron, it becomes more positively charged, kind of like having fewer toys. The atom that receives the electron becomes more negatively charged, sort of like gaining more toys. This movement of electrons from one atom to another is called electron transfer, and it's important because it can create charged ions or lead to chemical reactions. So, overall, an electron donor is an atom that can give away its extra electrons to another atom that needs them.