CSEC Chemistry · May/June 2010 · Paper 1 · Question Q5
An isotope of lead can be represented by the following symbol ^{207}_{82}\text{Pb}. From this symbol, it can be deduced that one atom of the isotope has
- (A)82 neutrons
- (B)82 protons
- (C)125 protons
- (D)207 protons
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