Question

1. which statements correctly describe atoms? select all that apply. elements are the basic unit of atoms. only large matter takes up space. invisible matter is made of atoms. atoms have mass.

Explanation:

• Atoms are the basic unit of elements, not the other way around. So "Elements are the basic unit of atoms" is incorrect.
• All matter, regardless of size, takes up space. So "Only large matter takes up space" is incorrect.
• Invisible matter (e.g., gases like oxygen, which is made of \(O_2\) molecules composed of oxygen atoms) is made of atoms. So "Invisible matter is made of atoms" is correct.
• Atoms have mass (e.g., the mass of a hydrogen atom is approximately \(1.67\times10^{-27}\space kg\)). So "Atoms have mass" is correct.

Answer:

Invisible matter is made of atoms, Atoms have mass.