Waec Model Questions Vol1 2017 Chemistry Question 1

Practice essay / theory question 1 from the 2017 Waec Model Questions Vol1 Chemistry examination. This question covers Atomic Structure .

Waec Model Questions Vol1 2017 Chemistry Essay / Theory
Topic: Atomic Structure
Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • essay
Waec Model Questions Vol1 2017 Chemistry Question 1 diagram

The diagram shows a Bohr model of an atom of an unknown element. The nucleus is labelled with the numbers of protons and neutrons. Two concentric shells are drawn: the inner (K) shell contains 2 electrons and the outer (L) shell contains 9 electrons. No other shells are shown.

Question Parts

( a )
State the atomic number (Z) and the mass number (A) of the element.
( b )
Write the full electron configuration of the element using the principal quantum numbers (n) and the maximum electrons per shell (2n²).
( c )
If one electron is removed from the outermost shell, write the resulting ion symbol and indicate its charge.

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About This Question

This is Waec Model Questions Vol1 2017 Chemistry Question 1. It is one of the essay questions from the 2017 Waec Model Questions Vol1 Chemistry examination.

The question covers Atomic Structure .

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