Where do expect to find the most reactive metals on the periodic table; ?

You can find the most reactive metals in the periodic table by looking for metals called alkali metals.

Explanation:

Alkali metals are chemical elements of group 1A of the periodic table with similar properties. The group consists of the following metals: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and frâncio (Fr). They are low density metals, and moles. They are electropositive and highly reactive.

To know whether one metal is more reactive than another, it is important to remember the concept of electropositivity, that is, the ability of one atom to yield electrons to another atom during a bond.  Thus, if one metal is more electropositive than another, it has a greater tendency to lose electrons in a bond and therefore tends to be more reactive.

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