CAIE IGCSE Chemistry 2.3.2 Symbols for atoms & ions

Practise reading atom and ion symbols to complete proton, neutron and electron tables for isotopes and charged particles.

Exam points

complete tables by using atomic number for protons and mass number minus protons for neutrons
write a missing nuclide symbol from given protons, neutrons, electrons and ion charge

[Maximum number: 2]

Sulfur is a Group VI element.

A sample of sulfur contains two isotopes, ${ }^{32} \mathrm{~S}$ and ${ }^{34} \mathrm{~S}$ .

Complete Table 5.1 to show the number of protons and neutrons in one atom of each isotope of sulfur.

Table 5.1

& ${ }^{32} \mathrm{~S}$ & ${ }^{34} \mathrm{~S}$

protons & 16 & 16

neutrons & 16 & 18

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