Atom problem !?

Question

An subatomic parts of an atom are
1.electrons
2.protons
3. nuetrons

is there any other particles present in an atom ,if so what?

Answer 1

You are right--- the subatomic parts of an atom are:
1.electrons
2.protons
3. nuetrons
Nothing else. But both protons and nuetrons may be further divided into quarks.