Neco 2023 Chemistry Question 2

Practice essay / theory question 2 from the 2023 Neco Chemistry examination. This question covers Periodic Table .

Neco 2023 Chemistry Essay / Theory

Topic: Periodic Table

Question 2 NECO • 2023 • CHEMISTRY • essay

The diagram shows a fragment of the periodic table containing periods 2 and 3 and groups 13 to 18. Element Y is highlighted in the diagram. The following data are given for element Y: atomic radius = 115 pm, first ionisation energy = 738 kJ·mol⁻¹, electronegativity (Pauling) = 2.0.

( a )

Identify element Y (give its name and symbol).

( b )

State the most common oxidation state of element Y and write the formula of the oxide formed when Y reacts with oxygen.

( c )

Write a balanced chemical equation for the reaction of element Y with water, indicating the physical states of all reactants and products.

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This is Neco 2023 Chemistry Question 2. It is one of the essay questions from the 2023 Neco Chemistry examination.

The question covers Periodic Table .

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