The nucleus is positively charged because of the proton while the electron is negatively charged thus the attraction keeps the electron bound to the atom.
The sub-atomic particles are the particles which are found in the structure of the atom.
The sub-atomic particles are:
The electron is not part of the nucleus but is bound to the atom because of attraction by the nucleus.
The nucleus is positively charged because of the proton while the electron is negatively charged. Therefore, the attraction between the opposite charges keeps the electron bound to the atom.
In conclusion, the atom is composed of electrons, protons and neutrons.
Learn more about sub-atomic particles at: https://brainly.com/question/2166462
#SPJ1