Neco Model Questions Vol1 2025 Chemistry Question 2

Practice essay / theory question 2 from the 2025 Neco Model Questions Vol1 Chemistry examination. This question covers Periodic Table .

Neco Model Questions Vol1 2025 Chemistry Essay / Theory

Topic: Periodic Table

Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • essay

Neco Model Questions Vol1 2025 Chemistry Question 2 diagram

The diagram presents the first twenty elements of the periodic table (hydrogen to calcium). Groups 1, 2, 16, 17 and 18 are highlighted in different colours, and the periods are clearly marked.

Question Parts

( a )

Identify the period and group of sulphur (S) and explain two chemical properties of sulphur that follow from its position in the table.

( b )

Using the diagram, describe the trend in atomic radius across period 3 from sodium (Na) to argon (Ar) and give a brief explanation for the observed pattern.

( c )

Predict the type of oxide formed when magnesium (Mg) reacts with oxygen and justify your prediction using periodic trends shown in the diagram.

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About This Question

This is Neco Model Questions Vol1 2025 Chemistry Question 2. It is one of the essay questions from the 2025 Neco Model Questions Vol1 Chemistry examination.

The question covers Periodic Table .

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