Waec Model Questions Vol1 2020 Chemistry Question 7

Practice essay / theory question 7 from the 2020 Waec Model Questions Vol1 Chemistry examination. This question covers Atomic structure, Periodic trends .

Waec Model Questions Vol1 2020 Chemistry Essay / Theory

Topics: Atomic structure Periodic trends

Question 7 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • essay

An element X has atomic number 15.

Question Parts

( a )

Write the ground‑state electron configuration of X.

( b )

Predict whether the first ionisation energy of X is higher or lower than that of element Y (atomic number 16) and give a brief justification.

( c )

Explain why the atomic radius of X is smaller than that of element Z (atomic number 14).

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About This Question

This is Waec Model Questions Vol1 2020 Chemistry Question 7. It is one of the essay questions from the 2020 Waec Model Questions Vol1 Chemistry examination.

The question covers Atomic structure, Periodic trends .

View More Waec Model Questions Vol1 2020 Chemistry Questions More Waec Model Questions Vol1 Practice Questions Back to Questions

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