Neco Model Questions Vol1 2024 Chemistry Question 7

Practice essay / theory question 7 from the 2024 Neco Model Questions Vol1 Chemistry examination. This question covers Atomic Structure, Electronic Configuration .

Neco Model Questions Vol1 2024 Chemistry Essay / Theory

Topics: Atomic Structure Electronic Configuration

Question 7 NECO_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • essay

A sample of an unknown element X is analysed and found to have an atomic mass of 39.10 u and an electronic configuration of 1s² 2s² 2p⁶ 3s² 3p⁶ 4s². Using this information:

Question Parts

( a )

Identify the element and write its symbol.

( b )

Explain why the first ionisation energy of potassium is lower than that of argon, even though argon is to the right of potassium in the same period.

( c )

Predict the most likely charge of the ion formed by potassium and justify your answer.

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About This Question

This is Neco Model Questions Vol1 2024 Chemistry Question 7. It is one of the essay questions from the 2024 Neco Model Questions Vol1 Chemistry examination.

The question covers Atomic Structure, Electronic Configuration .

View More Neco Model Questions Vol1 2024 Chemistry Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

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