1 Bond Dipoles Covalent bonds refer to atoms that are together, bonded, because they share electrons to get their octet. Polar covalent bonds occur when the sharing is unequal - the electrons tend to be around one atom much more than the other. This creates a dipole, which is a situation when there are two poles with different qualities. In this case one pole or end of the bond is more negative in charge because there are more electrons around it. The other end or pole is more positive because there are fewer electrons around it. In this simulation you will work with a variety of simple compounds, two or three atoms, and watch how polarity happens. Why would there be more electrons around one atom than another in a bond? This occurs because elements differ in how strongly they attract electrons around them. This is due to difference in the number of protons and the number of orbitals they have. We can easily find the electronegativity of an element from chart in chapter 3. Key terms Bond Dipole = two