Iron is a metal in group VIII of the periodic table with atomic number 26, an atomic weight of 55.85, and a density of 7.86. It has a melting point of 1539 C.

Some substances, like particles of this iron ... table salt. And that’s it! Nearly everything in this room, in your room, and in the entire universe, is made of: elements with one kind of atom ...

"Most people are familiar with ferromagnets (permanent magnets) like iron ... in row six of the periodic table means bismuth also possesses some unusual heavy-atom properties.