Neco Model Questions Vol1 2022 Chemistry Question 2

Practice essay / theory question 2 from the 2022 Neco Model Questions Vol1 Chemistry examination. This question covers Periodic Table .

Neco Model Questions Vol1 2022 Chemistry Essay / Theory
Topic: Periodic Table
Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2022 • CHEMISTRY • essay
Neco Model Questions Vol1 2022 Chemistry Question 2 diagram

The diagram presents a portion of the periodic table highlighting the elements Na, Mg, Al and Si. The groups are numbered 1 to 4 from left to right and the periods are numbered 3 from top to bottom. The electronic configuration of Na is shown as 1s² 2s² 2p⁶ 3s¹.

Question Parts

( a )
State the block (s, p or d) to which each of the four highlighted elements belongs.
( b )
Write the general electronic configuration for any element belonging to Group 1 (the alkali metals).
( c )
Predict the most common oxidation states of Al and Si and justify each prediction using their position in the periodic table.
( d )
Describe the trend in atomic radius across Period 3 from Na to Si and give a brief explanation for this trend.

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About This Question

This is Neco Model Questions Vol1 2022 Chemistry Question 2. It is one of the essay questions from the 2022 Neco Model Questions Vol1 Chemistry examination.

The question covers Periodic Table .

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