IB skill practice

Explain periodic trends in atomic radius and ionization energy

Syllabus-aligned Chemistry skill. Draft skills remain inactive until production seed coverage is added.

Paper 1, Paper 2 5 marks Difficulty 5

Ionization energy increases across a period

Across a period in a fertiliser label discussion, first ionization energy changes from \(536\,\text{kJ mol}^{-1}\) to \(1016\,\text{kJ mol}^{-1}\). Calculate the increase. Enter the answer and choose the interpretation that matches the chemistry.

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