Protons: the atomic number tells you how many there are and is the IDENTITY of the atom, have a positive electrical charge, are found in the same numbers as electrons, are positively found in the nucleus, have the same mass as neutrons, are found in the centre of the atom and symbol is p+, Neutrons: the mass number is used to calculate how many there are, have the same mass as protons, are found in the nucleus and are neutral, have no electrical charge, are found in the centre of the atom and symbol is n0, these can change the mass number but not the identity of your atom, helps with the stability of the nucleus, Electrons: the atomic number tells you have many you have (-), have the smallest mass, are not found in the nucleus, are found in the same number as protons when the atom is neutral, have a negative electrical charge, are found in different shells (energy levels) around the nucleus,

Y9 Atomic Structure Card Sort

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