Waec Model Questions Vol1 2022 Chemistry Question 1

Practice essay / theory question 1 from the 2022 Waec Model Questions Vol1 Chemistry examination. This question covers Atomic structure, Electronic configuration .

Waec Model Questions Vol1 2022 Chemistry Essay / Theory
Topics: Atomic structure Electronic configuration
Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • CHEMISTRY • essay
Waec Model Questions Vol1 2022 Chemistry Question 1 diagram

The diagram shows a Bohr model of a neutral atom of element X.

Question Parts

( a )
State the atomic number (Z) and the mass number (A) of element X as shown in the diagram.
( b )
Write the ground‑state electron configuration of element X using the (n, l) notation (e.g., (1s)², (2s)², …).
( c )
Explain why element X belongs to the same group as nitrogen (N), which has the outer‑most electron configuration (2s)²(2p)³.

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About This Question

This is Waec Model Questions Vol1 2022 Chemistry Question 1. It is one of the essay questions from the 2022 Waec Model Questions Vol1 Chemistry examination.

The question covers Atomic structure, Electronic configuration .

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