#910 What is a metal?
What is a metal? A metal is any material that readily loses its outer shell electrons, can be polished to be highly reflective of light, is opaque, conducts heat, conducts…
What is a metal? A metal is any material that readily loses its outer shell electrons, can be polished to be highly reflective of light, is opaque, conducts heat, conducts…
What are rare earth metals? They are a group of 17 elements on the periodic table that are spread out so much in the earth that they are difficult to…
Why does metal spark in a microwave oven? The microwave charges one side of the metal positively and one side negatively. This charge can ionize the air, making sparks. First,…
I learned this today. Glass and metal can be recycled indefinitely, but plastic can only be recycled once or twice and paper about 7 times. Recycling has been around for…
I learned this today. Some metals are nonmagnetic because the magnetic poles of the atoms within them point in different directions and are weakly repelled by both poles of the…