I need some help for a science projectDo you guys know what substances (that you can find around the house) that are essentially elemental? No compounds or mixtures please! You know, like copper in a penny (well, back in the old days) or helium in a balloon? There's a catch to thisIt has to be objects that no one would think of, not common stuff like aluminum foil and whatnotsI'm lostHelp?
copper in the electrical wire in the walls gold on electrical contacts in computers and high-end speakers americium in smoke detectors radon in the air of the home (leakage from the ground) silicon in computer chips maybe try aluminum but not as Al foilAl power is an ingredient in solid Dranophotogrey lenses of glassesWhen they darken in sunlight, that is due to finely divided silver being madeI'll leave you to discover more of the mechanism on your ownHTH
