2 Dimensional drawing of an atom, 3 Dimensional drawing of an atom., Electrons - Negatively charged sub-atomic particles are found orbiting around the nucleus., Protons - Positively charged sub-atomic particles are found in the nucleus., Neutron - Uncharged sub-atomic particles are found in the nucleus., Atomic Number - The number of protons/electrons of an atom., Atomic Mass - The number of protons and neutrons of an atom., Number of neutrons = - Atomic mass - Atomic number,

Y11 Chem - Atomic Structure Review

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