Final answer:
The group of elements being referred to, which includes less reactive metals like copper, iron, and tungen, are known as transition metals. They are found in groups 3-12 of the periodic table and are less reactive partly because they can form a protective passivation layer.
Step-by-step explanation:
The large group of elements being referred to in the question includes metals such as copper, iron, and tungsten, which are all transition metals. This category of metals is known for being less reactive compared to others like the alkali metals or alkaline-earth metals. Transition metals are located in groups 3-12 of the periodic table and can be further characterized by their ability to form passivation layers that protect them from rapid oxidation. This protective layer is a nonreactive film of oxide or other compounds that shields the metal from the environment. This property is not only useful in industrial applications and manufacturing various household items, but it also contributes to their wide-ranging utility and versatility.
Transition metals occupy a central block (groups 3-12) of the periodic table, distinguished from other elements such as the alkali metals (group 1), alkaline earth metals (group 2), halogens (group 17), and noble gases (group 18). These metals are widely used in different industries and have significant importance in everyday life due to their unique properties and less reactivity when compared to the highly reactive groups.