A-LevelChemistryGroup 29701/12 · Oct/Nov 2012 · Q141 Mark

What are the trends in the stated properties as Group II is descended from magnesium to barium?

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Adecomposition temperature of the carbonate: decreases, first ionisation energy: decreases

Bdecomposition temperature of the carbonate: decreases, first ionisation energy: increases

Cdecomposition temperature of the carbonate: increases, first ionisation energy: decreases

Ddecomposition temperature of the carbonate: increases, first ionisation energy: increases

✓ Correct answer

C: decomposition temperature of the carbonate: increases, first ionisation energy: decreases

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