an element contains just one type of atom a compound contains two or more types of atom joined together a mixture contains two or more different substances that are not joined together the different ...

The formula H₂O shows that water is made from two atoms of hydrogen (H) bonded to one atom of oxygen (O). Katie: Time for some science. And today it's a chemistry classic, the periodic table. And here ...

What Is A Compound Semiconductor? A compound semiconductor is a material with electrical conductivity that falls between conductors and insulators. Unlike the well-known silicon in most computer chips ...