Igcse Model Questions Vol1 2019 Chemistry Question 2

Practice essay / theory question 2 from the 2019 Igcse Model Questions Vol1 Chemistry examination. This question covers periodic table, electron configuration, ionic bonding, periodic trends .

Igcse Model Questions Vol1 2019 Chemistry Essay / Theory
Topics: periodic table electron configuration ionic bonding periodic trends
Question 2 IGCSE_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • essay
Igcse Model Questions Vol1 2019 Chemistry Question 2 diagram

The diagram shows a schematic representation of a sulphur (S) atom. The nucleus contains 16 protons and 16 neutrons. The 16 electrons are arranged in three shells: 2 electrons in the first shell, 8 in the second shell and 6 in the third shell.

Question Parts

( a )
Write the full ground‑state electron configuration of sulphur and indicate how many electrons are in its valence shell.
( b )
Using the diagram, explain why sulphur is more likely to gain two electrons than to lose six electrons when forming an ion. Include reference to effective nuclear charge and energy considerations.
( c )
Write the formula of the ionic compound formed when sulphur reacts with magnesium. Justify the formula using the charges on the ions.
( d )
Sulphur is in period 3, group 16 of the periodic table, whereas oxygen is in period 2, group 16. Compare their atomic radii and first ionisation energies, and explain the differences using periodic trends.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Igcse Model Questions Vol1 2019 Chemistry Question 2. It is one of the essay questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.

The question covers periodic table, electron configuration, ionic bonding, periodic trends .

View More Igcse Model Questions Vol1 2019 Chemistry Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support