Question

What are the three subatomic particles that make up an atom

Answer 1

Answer:

Proton, neutron, electron

Explanation:

The atom consists of a nucleus, where almost all the mass is concentrated, and electrons orbiting around the nucleus.

The nucleus consists of two types of particles:

- Proton: it has a mass of $1.6726\cdot 10^{-27} kg$, and a positive electric charge of +e ($1.6\cdot 10^{-19}C$)

- Neutron: it has a mass of $1.6749 \cdot 10^{-27}kg$, and it has no electric charge

The third particle that makes an atom is the electron, that orbit around the nucleus:

- Electron: it has a mass of $9.1094\cdot 10^{-31}kg$, and it has a negative electric charge of -e ($-1.6\cdot 10^{-19}C$)