Question

Which is an element?

O A. A molecule made of iron and oxygen
O B. An alloy of iron and tin
O C. A nail made of iron
D. A mixture of iron and lead

Answer 1

C. Iron nail

As it has only one element

Answer 2

C.) A nail made of iron

Step-by-step explanation:

Elements are not just one atom. However, the atoms must all be of the same type. A, B, and D all contain a mixture of different types of atoms. C is the only answer that contains just one type of atom.