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In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom. More reactive metals have a greater tendency to lose electrons and form positive ions .

Activity series are used to help predict whether certain chemical reactions will occur. The information that they contain is used as a general guide for assessing relative reactivity of a substance and for predicting reaction outcomes.

Fluorine F MOST Reactive Chlorine Cl Bromine Br Iodine I LEAST Reactive The Activity Series of the metals is an invaluable aid to predicting the products of replacement reactions. It also can be used as an aid in predicting products of some other reactions.

The activity series of metals is an empirical tool used to predict products in displacement reactions and reactivity of metals with water and acids in replacement reactions and ore extraction. It can be used to predict the products in similar reactions involving a different metal.

Activity series are generally listed in order of decreasing reactivity. This means that in a metal activity series we would find the most reactive metals at the top. Only a few of the most reactive metals are able to displace hydrogen from water while a larger number will displace H+ from an acid.

In order to determine whether this will actually happen, you consult an activity series of metals. An activity series of metals lists metals in descending order of reactivity. This means that a metal can only replace a metal below it in the series.

Solution: Metals are arranged in activity series according to their tendency to lose valence electrons. It is the decreasing order of their reactivity.

The reactivity series of metals, also known as the activity series, refers to the arrangement of metals in the descending order of their reactivities. The data provided by the reactivity series can be used to predict whether a metal can displace another in a single displacement reaction.

In order of decreasing reactivity, the metals potassium, sodium, lithium, calcium, magnesium, zinc, iron and copper can be put in order of their reactivity from their reactions with water and dilute acids.