Question

2. ________ (Atom/Molecules) are the basic building blocks of matter.

Answer 1

Atoms are the basic building blocks of matter.

• Atoms are the basic building blocks of everything we see around us.
• Atoms are the smallest particles that characterize that substance.
• For example, atoms of hydrogen$\left(\mathrm{H}\right)$ is the smallest particle of hydrogen that has the properties of hydrogen.

Therefore, atoms are the basic building blocks of matter.