âSpoons come in many different sizes and are not precise enough to measure a childâs medication,â said pediatrician Ian Paul, MD, FAAP, lead author of the policy statement. âFor infants and toddlers, a small error â especially if repeated for multiple doses â can quickly become toxic.â.
Copper and bronze do not contain any iron, and only iron can rust (because rust is defined as iron oxide, a compound of iron and oxygen); so the answer is that steel will rust the fastest and copper and bronze will never 'rust'. But, yes, copper and bronze do tarnish, they do corrode.
A. Actually brass doesn't rust, Caren :-). Iron is an element (Fe). And rust is defined as the iron oxide corrosion products of the corrosion of iron. So if something does not contain iron (Fe), it cannot produce iron oxide, so it cannot rust.Steel is iron-based and it rusts; the rest don't.That does not mean the other metals can't tarnish or corrode, though.In fact, all metals except precious metals like gold and platinum corrode to some degree. It's just that it's not called rust. If you scratch the lead you will see that it stays bright only for a little while and then tarnishes. chose copper, lead, steel, aluminum, zinc, iron, and brass. I pretty sure that 4 of those don't rust (copper, lead, aluminum, and zinc) and 2 do (iron and steel) but I'm not sure if brass does.