Question

why group 3 to 12 is known as transition elements.#chemistry☺☺☺☺☺

Answer 1

▶group 3 to 12 elements are known as transition elements because they have their two outermost shells incomplete.

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Answer 2

The position of d-block elements in the periodic table is between s-block elements and p-block elements. They exhibit transitional behaviour between s-block and p-block elements,so they are known as transition elements. with all metals, the transition elements are both ductile and malleable, and conduct electricity and heat. Also they have variable valency