What are 4 pure elements around the house?

Answer 1

If you have any electrical wire around, it's almost certainly pure (or nearly pure) copper. Others you might be able to find are lead (fishing weights) and aluminium (lots of things). Iron is another possibility (wrought iron ornaments or cast iron cookware). Diamonds are carbon, as is graphite (though the "graphite" in a pencil probably isn't pure graphite but a mixture of graphite and clay). You can easily "make" carbon, for that matter: the soot deposited on a glass slide held above a candle flame will be nearly pure carbon.

Answer 2

gold rings, silver or platinum watches, pennies are made of copper, iron grate on your stove, maybe even the helium in a balloon. Anything specific?

pennies are currently zinc with a copper cladding, pure gold is too soft for use in jewelry it is always an alloy, pure iron is never used it is always alloyed with carbon and various metals and often coated with zinc or other metals to prevent rusting, pure helium is too expensive for "toy balloons" so the inflator blends a certain percentage of air with the helium from the cylinder as the balloon is inflated. The closest thing to a pure element you will ever see in your everyday life is Americium. Be careful its highly radioactive but only of you consume it so just dont eat it or cut it and accidentally consume the residue... It's in smoke detectors. Just YouTube it. You can see exactly how to extract it. Just keep it in a plastic container once you do :) and also you can easily find Mercury in thermometers (again be careful), and pennies made before the 70s are actually copper and not that uncommon. I have about 50 upstairs right now. There is also Lithium in Lithium batteries (duh) which is also dangerous to extract so again be careful if you decide to go after these materials. Lithium tarnishes really fast when it touches oxygen so if you ever figure out how to get it out of a battery, contain it asap! Otherwise keep reading and learning and have fun!