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.
Answer 1: For many years (about 80) it has been known that adding chromium and nickel (the nickel is not essential but the chromium is) to iron makes a steel that does not rust (it is stainless). The chromium in the steel forms a very thin layer of oxide that prevents the iron from rusting.