Explain the trend in first ionization energy down group 2. (3 marks)

The trend in first ionisation energy down a group: DECREASES due to:-       Increase in atomic radius as there are more shells-       Increased shielding because there is more electron repulsion from inner shells-       This results in a decrease in nuclear attraction on the outer electrons because the increased shielding outweighs the increased nuclear charge

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Explain the trend of first ionisation energy down a group.


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