Which is the most reactive metal and the least reactive metal?

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Solution

alkali metal are most reactive metals. Down the reactivity increases. Francium is most reactive element in periodic table. However, francium is artificial or only few quantities have produced right now, so after the francium, cesium is most reactive metal.

The least reactive metals would be Platinum, Gold, Palladium, Osmium and Silver and in the decreasing order.
The inertness of the metals are due to the electron configuration in the orbitals. You may need a deeper understanding of screening effect of d/f orbitals,

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Which of the following statement is true on the basis of above reactions?

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