![]() In fact, all metals except precious metals like gold will eventually corrode back to a form very similar to the ores we find in nature. You can only make iron oxide from iron and oxygen you can't make it out of copper or tin, so copper and bronze can never rust.Ĭopper and bronze can corrode or tarnish, however. Rust is iron oxide, the corrosion product of iron. Iron is an element, and steel is a very useful, reasonably pure form of iron. Bronze is an alloy (you can look up 'alloy') of the elements copper and tin. Copper is an element (you can look up 'element'). We will reword it for you to try to make it clearer. I want to know what happens when copper, bronze, and steel rust? Do they break or bend easily? Can you clean it up or do you have to replace it? Also in what kind of machinery are these metals used? Cars? destiny Ī. And I need these answers for my science project. I am trying to find the answer to the same question. But bare copper roofs last decades outdoors, and bronze statues last decades outdoors, so it is very difficult to say which of the two corrodes or tarnishes faster, but again neither rusts. Bronze is not an element, but an alloy (mixture) of copper and the element 'Tin', element number 50.īut, yes, copper and bronze do tarnish, they do corrode. Iron is element number 26 with 26 protons, and Copper is element 29 with 29 protons. and Uranium being number 92 with 92 protons. There are 92 natural (found in nature) elements, with Hydrogen being number 1 with one proton, Helium number 2 with 2 protons. And by 'element' we mean the 92 fundamental, inseparable materials of which everything in the universe is made - i.e., things that are not compounds or mixtures of other things but are purely and completely only one thing, as determined by how many protons are in the nucleus of their atoms. You are young to be considering the rest of the question, Isaiah. 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 ever 'rust'. Steel is a refined and very useful form of the element 'iron'.
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