Which is the most reactive metal?

By Raj Vimal|Updated : October 12th, 2022

(A) Sodium

(B) Calcium

(C) Iron

(D) Potassium

Potassium is the most reactive metal. Metals include potassium, sodium, lithium, barium, strontium, and calcium, listed in decreasing order of their reactivity. The arrangement of metals in declining order of their reactivities is referred to as the "metal reactivity series," sometimes known as the "activity series."


Reactive Metal Characteristics

Below, we have mentioned the characteristics of Reactive metals.

  • Given their ease of oxidation, the metals near the top of the reactivity range are effective reducing agents.
  • These metals corrode and discolor quite quickly.
  • While moving down the series, the metals' reducing power becomes weaker.
  • While descending the metal reactivity series, the electro-positive of the elements similarly decreases.
  • All metals found above hydrogen in the activity series react with diluted HCl or diluted H2 to release H2 gas H2 SO4.


  • The chemical element sodium has the chemical symbol "Na" and an atomic number of 11.
  • It is a delicate, silvery-white metal that is exceedingly reactive.
  • Due to its placement in group 1 of the periodic table, sodium is an alkali metal.


  • A mineral called calcium is essential to life.
  • Calcium is represented by the letter "C" and has the atomic number 20.
  • Calcium aids in bone development and maintenance, as well as blood clotting, muscular contraction, and heartbeat.
  • Our bones and teeth contain 99% of the calcium in our body.
  • Through our skin, nails, hair, perspiration, urine, and faeces, we lose calcium every day.
  • Our bodies are unable to generate calcium on their own.


  • With the atomic number 26 and the symbol "Fe," iron is a chemical element.
  • It is a metal that is found in group 8 of the periodic table and the first transition series.


  • Both a mineral and an electrolyte, potassium.
  • It facilitates the function of all of your muscles, including those that manage your breathing and heartbeat.
  • Your diet provides you with potassium.
  • When your body needs potassium, it uses it.
  • Your kidneys filter the surplus potassium from your blood that your body does not require.
  • Its atomic weight is 19.


Which is the Most Reactive Metal? (A) Sodium (B) Calcium (C) Iron (D) Potassium

Potassium is the most reactive metal. Potassium metal has a low melting point, is soft and white with a silvery lustre, and is a good conductor of heat and electricity.


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