What is the element family name of copper?
The Correct Answer and Explanation is:
The element family name of copper (Cu) is the transition metals or d-block metals. Copper is part of the period 4 elements and resides in the group 11 of the periodic table. This family is characterized by having partially filled d orbitals, which contribute to many of the transition metals’ unique properties, such as the ability to form multiple oxidation states and their high electrical and thermal conductivity.
Explanation:
Copper belongs to the group of metals known as transition metals because it is found in the central block of the periodic table, specifically in group 11. Transition metals are elements that have high melting points, form colored compounds, and can often exhibit more than one oxidation state. The group includes other elements such as silver (Ag) and gold (Au), which are similar to copper in their metallic properties, such as excellent conductivity of heat and electricity.
Copper, with an atomic number of 29, has the electron configuration of [Ar] 3d^10 4s^1. This configuration shows that copper has one electron in its 4s orbital and a completely filled 3d orbital, which is characteristic of transition metals. The 3d subshell is significant because it plays a role in the chemical behavior of copper, including its ability to form various oxidation states, such as +1 and +2.
Copper is widely used in electrical wiring, coins, and as an alloy component (e.g., brass and bronze), due to its excellent conductivity and resistance to corrosion. It also plays an essential role in biological systems, particularly in enzymes and cellular processes in humans, plants, and animals.
In conclusion, copper is classified as a transition metal due to its position in group 11 and its typical properties, including the ability to conduct electricity efficiently, form various oxidation states, and its characteristic d orbital electron configuration. These elements play a vital role in both industrial and biological systems.