Neco 2020 Chemistry Question 1

Practice essay / theory question 1 from the 2020 Neco Chemistry examination. This question covers Atomic Structure, Isotopes, Electron Configuration .

Neco 2020 Chemistry Essay / Theory

Topics: Atomic Structure Isotopes Electron Configuration

Question 1 NECO • 2020 • CHEMISTRY • essay

The diagram shows a neutral atom of an unknown element. All sub‑atomic particles are labelled and the electrons are shown in their respective energy shells.

Question Parts

( a )

State the name and symbol of the element shown in the diagram.

( b )

Calculate the mass number (A) of the atom and write the standard notation for this isotope.

( c )

Write the ground‑state electron configuration of the element using the Aufbau principle.

( d )

Explain, with reference to the diagram, how isotopes of this element would be represented and why they have the same chemical properties.

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About This Question

This is Neco 2020 Chemistry Question 1. It is one of the essay questions from the 2020 Neco Chemistry examination.

The question covers Atomic Structure, Isotopes, Electron Configuration .

View More Neco 2020 Chemistry Questions More Neco Practice Questions Back to Questions

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