Igcse Model Questions Vol1 2024 Chemistry Question 2

Practice essay / theory question 2 from the 2024 Igcse Model Questions Vol1 Chemistry examination. This question covers periodic table, electronic configuration, periodic trends, oxidation states, chemical bonding .

Igcse Model Questions Vol1 2024 Chemistry Essay / Theory
Topics: periodic table electronic configuration periodic trends oxidation states chemical bonding
Question 2 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • essay
Igcse Model Questions Vol1 2024 Chemistry Question 2 diagram

The diagram shows a fragment of the periodic table containing four elements with their atomic numbers, symbols, group numbers and periods indicated.

Question Parts

( a )
Write the ground‑state electron configuration for gallium (Ga).
( ) State the number of electrons in each principal energy level (n = 1, 2, 3, 4).
( ) Write the configuration using the noble‑gas shorthand.
( b )
The element arsenic (As) is shown in the diagram.
( ) State its most common oxidation state(s).
( ) Explain, using its position in the periodic table, why this oxidation state is favoured.
( c )
Compare the metallic character of copper (Cu) and gallium (Ga). Use periodic trends to justify which is more metallic and why.
( d )
Iron (Fe) forms coloured compounds such as the yellow colour of Fe³⁺ in aqueous solution. Explain how the presence of d‑electrons leads to coloured compounds, referring to electronic transitions.

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 2024 Chemistry Question 2. It is one of the essay questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.

The question covers periodic table, electronic configuration, periodic trends, oxidation states, chemical bonding .

View More Igcse Model Questions Vol1 2024 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