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Ia group (Group 1) the alkali metals are the most reactive and they can lose an electron easily.

The least reactive metals are:-

  • The so-called platinum metals, ruthenium, rhodium, palladium, osmium, iridium, and platinum which are transition metals in groups 8,9,10.Althoough i consider osmium is a bit too reactive to be included.
  • The coinage metals copper, silver, gold are quite unreactive particluarly gold.
  • Mercury.

Some metals appear to be very unreactive because their surfaces are passivated by an oxide layer e.g. aluminium and titanium.

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12y ago

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