Respuesta :

Gold is an element, it is not a mixture.It is a pure substance.
It is  isotopically pure, as it has only one naturally occurring isotope
hope this helps

Explanation:

An element or pure element is defined as a substance which consists of similar atoms. Whereas a substance which consists of different atoms is known as a mixture or compound.

For example, pure gold consists of only atoms of Au (gold). On the other hand, NaCl is a compound as it consists of atoms of sodium and chlorine.

Therefore, we can conclude that pure gold is an element.