Waec Model Questions Vol1 2017 Chemistry Question 2

Practice essay / theory question 2 from the 2017 Waec Model Questions Vol1 Chemistry examination. This question covers Periodic Table .

Waec Model Questions Vol1 2017 Chemistry Essay / Theory

Topic: Periodic Table

Question 2 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • essay

Waec Model Questions Vol1 2017 Chemistry Question 2 diagram

The illustration shows a section of the periodic table containing the elements Na, Mg, Al and Si. Their symbols, atomic numbers and group numbers are displayed. No other information is given.

Question Parts

( a )

State the atomic number and the standard atomic weight (to the nearest whole number) of magnesium (Mg).

( b )

Write the ground‑state electron configuration of aluminium (Al) using the notation 1s² 2s² 2p⁶ … .

( c )

Explain why sodium (Na) and magnesium (Mg) belong to different groups and how this difference influences their most common oxidation states.

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About This Question

This is Waec Model Questions Vol1 2017 Chemistry Question 2. It is one of the essay questions from the 2017 Waec Model Questions Vol1 Chemistry examination.

The question covers Periodic Table .

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