# How do elements, compounds and mixtures differ?

##### 1 Answer
Aug 31, 2017

Elements are particles with the same $\text{atomic number, Z}$.

#### Explanation:

And what is $Z$ but the number of positively charged, massive particles that comprise (part) of the element's nucleus.

Z=1, H; Z=2, He; Z=3, Li; ..........Z=24, Cr....

Compounds are mixtures of elements that are chemically bound together. And mixtures are simply 2 or more elements and compounds THAT ARE NOT chemically bound together. The best example of a mixture is the air we breathe, which comprises elemental dinitrogen, and dioxygen, and the compound, carbon dioxide.