How to Memorize the Reactivity Series Easily? Is There Any Mnemonic for It?

By K Balaji|Updated : November 12th, 2022

The reactivity series of metals can be memorised easily by - Please send cats, monkeys and zebras in lovely happy cages made of silver, gold & platinum.

  • The metals in the reactivity series are ordered in descending order of reactivity. The phrase "Please bring cats, monkeys, and zebras in charming cheerful cages constructed of silver, gold, and platinum" serves as a helpful mnemonic for the metal reactivity series.

please - potassium(k)

send - sodium(Na)

cats - calcium(Ca)

monkeys - magnesium(Mg)

and - Aluminum(Al)

zebras - zinc(Zn)

in - iron(Fe)

lovely - lead(Pb)

happy - [hydrogen](H)

cages - copper(Cu)

made of - mercury(Hg)

silver - silver(Ag)

gold - gold(Au)

Platinum - Platinum(Pt)

  • Metals are arranged in the list according to their degree of reactivity, with the most reactive at the top and the least reactive at the bottom. For instance, magnesium chloride and hydrogen gas are produced when a strip of magnesium is placed in hydrochloric acid (bubbling out). This is what we would anticipate since magnesium is listed on the reactivity chart above hydrogen.
  • Notably, the first mnemonic above lists "mercury" as the second "me," which is unusual. Additionally, take note that several components have been omitted from the mnemonics and that there appears to be some debate over the exact ordering of the reactivity series (for example, calcium is occasionally placed before sodium) (like lithium and hydrogen)

Reactivity Series of Metals Applications

  • The series can be used to foretell if a metal displacement reaction will take place.
  • Zinc, for instance, comes before copper in the sequence. We expect that adding a zinc metal strip to a solution of copper(II) sulphate will result in the formation of metallic copper and zinc sulphate.
  • Zinc is placed above copper in the series. According to our forecast, adding a strip of copper to a zinc sulphate solution won't cause a response.

Summary:-

How to Memorize the Reactivity Series Easily? Is There Any Mnemonic for It?

The phrase "Please send cats, monkeys, and zebras in charming cheerful cages constructed of silver, gold, and platinum" can be used to memorise the reactivity series of metals.

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