Although there are some exceptions

CHEMISTRY · Multi-part · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

Although there are some exceptions, the reactivity of a metal is linked to its position in the periodic table. (a) Describe the expected trend in reactivity down the Group 1 and 2 metals. (b) Using ideas about ionisation energy, explain this trend. (c) Give an equation for the first ionisation energy of sodium. (d) Define *first ionisation energy*.

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