Electrons – These subatomic particles orbit around the nucleus. They are negatively charged particles and found in definite energy levels orbiting the nucleus.
Protons – Theses subatomic particles are found in the nucleus. They are positively charged particles and belong to the nucleons group.
Neutrons – Theses subatomic particles are found in the nucleus. They are neutral particles and belong to the nucleons group.
Rutherford model – It states that during a chemical reaction, the mass of the products and reactants will always be equal.
Bohr model – The model states that electrons orbit stable around the nucleus in certain fixed circular orbits at a distinct distance from the nucleus. These orbits are related to specific energies and are also referred to as energy levels or energy shells.
Heisenberg uncertainty principle – The Heisenberg Uncertainty Principle states that the simultaneous determination of the velocity and position of a particle is impossible.
Shells – A pathway followed by the electron to move around the nucleus of the atom.
Subshells – A pathway for the electron to move within a shell.