1a2 marks
This question is about the element sulfur.
Complete the diagram to show the electronic configuration for a sulfur atom in the ground state.
Include labels for each subshell.
1b2 marks
Write an equation for the first ionisation energy of sulfur.
Include state symbols.
1c3 marks
Explain why the first ionisation energy of sulfur is less than the first ionisation energies of both phosphorus and chlorine.
1d
4 marks
4 marksA sample of sulfur contains four isotopes.
| Isotope | 32S | 33S | 34S | 36S |
| Percentage abundance | 94.88 | 0.83 | 4.27 | 0.02 |
i)
State what is meant by the term isotopes, in terms of subatomic particles.
(2)
ii)
Calculate the relative atomic mass of sulfur in this sample.
Give your answer to two decimal places.
Give your answer to two decimal places.
(2)
1e3 marks
3 marksThe mass spectrum of a sample of sulfur with 32S as the only isotope is shown.
i)
Calculate the number of sulfur atoms in the molecular ion.
You must show your working.
You must show your working.
(1)
ii)
Suggest the formula of the most stable ion shown by this spectrum.
(2)
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