Question

Which best describes an element? a pure substance, a type of a mixture, a pure compound or an impure substance?

Answer 1

Answer is “a pure substance”.

Everything in the universe is made from elements. An element has unique number of protons and electrons. Due to the number of neutrons present in the nucleus, an element can be either stable or radioactive. In other words we can say an element has one type of atoms. C,H,O,N and P can be taken as examples for elements.

Answer 2

Answer:

pure substance

Explanation:

Mixture : It is defined as the substance that is made by the combination of two or more different components.

Pure substance : It is defined as a substance that is made by the combination of only one type of atom or only one type of molecule.

Element : It is a pure substance which is composed of atoms of similar elements.

Compound : It is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.  Pure compounds are the one which has same elements combining and the impure are the one which has different elements combining.

As per question, the pure substance when it is composed of atoms best describes the element,