Why does metal reactivity increase

CHEMISTRY · Subjective · CBSE · Chemistry · Classification of Elements and Periodicity in Properties · Classification of Elements and Periodicity in Properties

Problem

Why does metal reactivity increase, and non-metal reactivity decrease, down the main groups of the periodic table?

Related theory

Periodicity and atomic number
Anomalous and diagonal behaviour
Classification of Elements and Periodicity in Properties
Periodic Trends in Chemical Properties

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