To the OP: Don't worry little boy you'll learn this in 7th grade. If we couldn't bend metal how the fuck would we make shapes out of them? Copper wire will bend, Lead, Aluminium, Silverware, Steel (depending on the balance of carbon & other elements) etc, etc.
It depends if the metal is maleable (bendable) or brittle (meaning it will snap). A LOT of metals are maleable, whereas non-metals are brittle for the most part.
I find it amusing that your friend feeds off of your naïveté