Respuesta :
Explanation:
According to the periodic table chart, elements present in groups 3 to 12 are placed at the center.
These elements are known as d-block elements and all these elements are metals. General electronic configuration of d-block elements is [tex](n-1)d^{1-10} ns^{1-2}[/tex].
These d-block elements are also known as transition elements. For example, elements of group 9 are Co, Rh, Ir etc.
Therefore, we can conclude that common name which might be used to describe the group to which this given element belongs is transition metals.
