What are elements?

1 Answer
Jul 11, 2017

Well there are about 100 or so........and elements compose ALL the matter around us......

Explanation:

And elements are substances that contain the same number of nuclear protons, and are characterized by the atomic number Z, which gives this number. Z=1, we got hydrogen, Z=2, we got helium, ................Z=26, we got iron. You don't have to learn these numbers (but you do have to know what they represent); look at the Periodic Table..........