name the three fundamental particles present in an atom

The answer I assume you want is

electrons, protons, neutrons. But I have news for you. That's what I taught for years (and was taught for years) but the only REALLY fundamental particle in those three is the electron (as far as we know today). What I'm saying is that the neutron and proton are not fundamental particles; i.e., they are made up of up quarks and down quarks.

Electrons,neutrons and protons

The three fundamental particles present in an atom are protons, neutrons, and electrons.

To understand how to arrive at this answer, we need to delve into the structure of an atom. At the center of an atom is a dense region called the nucleus, which is made up of protons and neutrons. Protons have a positive charge and contribute to the atomic number, determining the element's identity. Neutrons have no charge and help stabilize the nucleus by offsetting the repulsive forces between the protons.

Surrounding the nucleus, we find electrons, which are negatively charged. Electrons orbit the nucleus in specific energy levels or shells. The number of electrons determines the atom's overall charge and its chemical behavior.

To summarize, the three fundamental particles in an atom are:

1. Protons: Positive charge, found in the nucleus.
2. Neutrons: No charge, found in the nucleus.
3. Electrons: Negative charge, orbiting the nucleus in energy levels.