Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...

Homogeneous And Heterogeneous Mixtures; Definition, Difference And Examples: First of all, we will be talking about what are mixtures and then we will be talking about these two mixtures along with ...