What are the similarities and differences between ionic and covalent bonds?

“The most obvious similarity is that the result is the same: Both ionic and covalent bonding lead to the creation of stable molecules. The reactions that create ionic and covalent bonds are exothermic because elements bond together to lower their potential energy.”

Credit from Sciencing.com

Answer/// he concludes that the atom particles can be broken due to the paddle wheel being moved by particles coming out of the metal;