And what, what that simply means is that there is a sharing of electrons. In other words, one atom donates an electron and a second atom also donates an electron. The difference lies is a polarity and we'll see what that means in just a second. So let's begin with the non polar covalent bond. So let's suppose we have two atoms. So two atoms that are exactly the same mean they have the same amount of protons in the nucleus and the same amount of electrons.