The subatomic particle with a positive charge, Proton, Neutron, Electron, Nucleus, Shell, The subatomic particle with a negative charge, Proton, Neutron, Electron, Nucleus, Shell, The subatomic particle with a mass of almost zero , Proton, Neutron, Electron, The neutral subatomic particle, Proton, Neutron, Electron, Nucleus, The mass number is...., Number of protons and neutrons, Number of protons, Number of protons and electrons, Number of neutrons, The atomic number is...., The number of electrons, The number of protons, The number of neutrons.

Atomic structure

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