Which family in the periodic table has metals that are usually harder than other metals? Alkali metals Alkaline earth metals Lanthanide series Transition metals

The correct answer is "Alkaline earth metals".

Explanation:

Alkaline earth metals are a group of elements that are located in group 2 of the periodic table. They are harder than alkaline metals, have brightness and are good electrical conductors. Hardness is the degree of scratch resistance a material offers.

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