Neco Model Questions Vol1 2025 Chemistry Question 1

Practice essay / theory question 1 from the 2025 Neco Model Questions Vol1 Chemistry examination. This question covers Atomic Structure .

Neco Model Questions Vol1 2025 Chemistry Essay / Theory
Topic: Atomic Structure
Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • essay
Neco Model Questions Vol1 2025 Chemistry Question 1 diagram

The diagram shows a lithium atom (Z = 3) drawn in the Bohr model. The nucleus is labelled with the numbers of protons and neutrons, and the electron shells are labelled with the electrons occupying each shell.

Question Parts

( a )
State the number of protons, neutrons and electrons present in the atom shown.
( b )
Write the electron configuration of the atom using the Bohr model notation.
( c )
Explain how the diagram illustrates the concept of isotopes and give one example of another naturally occurring isotope of lithium.

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About This Question

This is Neco Model Questions Vol1 2025 Chemistry Question 1. It is one of the essay questions from the 2025 Neco Model Questions Vol1 Chemistry examination.

The question covers Atomic Structure .

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