What do we know about the different types of metals in the world?

According to the differences in properties, metals can be further classified into different groups – actinide metals, lanthanide metals, alkali metals, alkaline-earth metals, noble metals, rare metals, and transition metals.

Actinides are radioactive metals and do not generally occur in nature. The metals that are light in weight and shiny come under alkaline metals. Transition metals are generally coloured and are good conductors of heat and electricity. Scandium and titanium are transition metals.

Noble metals do not corrode easily and exist in their natural state on Earth. They resist chemical action and cannot be easily attacked by acids. Gold and platinum are noble metals.

In contrast, lanthanides tarnish quickly. They are silvery-white in colour and are also known as rare-earth metals. Europium is a lanthanide.

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