Question

what is a small particle that is the building block of matter

Answer 1

Scientists once thought the most fundamental building block of matter was a particle called the atom. Now we know that the atom is made of many smaller pieces, known as subatomic particles. Every atom contains a central core called the nucleus, made of particles called protons and neutrons.

Answer 2

Answer:

atom

Explanation:

Atom is a small particle that is the building block of matter