Question

Aluminum is an element. Which best describes what makes up a sample of aluminum?
A. one kind of atom
B. two different kinds of atoms
C. all carbon-based atoms
D. a carbon atom and non-carbon atoms

Answer 1

I believe the answer is A.

Answer 2

A sample of aluminium element is composed of one kind of atom.

An element is an example of a pure sample. In an element, there is only one type of atom present and that is the atom that composes the element.

So, in a sample of aluminium element, we only expect to see aluminium atoms which compose the element.

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