An atom consists of three types of subatomic particles:
- proton
- neutron
- electrons
In Paper 2 SPM 2006, students are asked
- to compare the relative mass and the charge of two of the subatomic particles[4 marks].
- describe fully the atomic structure of lithium[6 marks].
- draw the structure of an atom of sodium or potassium[7 marks].
- describe and the atomic structure of hydrogen[4 marks].
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