Question

List the properties of copper, sulfur, and copper sulfide.

Answer 1

Chemical Formula CuS   

Molecular Weight 95.61   

CAS No. 1317-40-4   

Group Copper 11
           Sulfur 16

Crystal Structure Hexagonal 

  Lattice Constant 3.961 Å

Answer 2

Answer:

Copper (Cu)

Atomic Number: 29  

Element Category: Transition metal

Electron Configuration: $3d^{10} 4s^1$

Sulfur (S)

Atomic Number: 16

Element Category: Reactive nonmetal

Electron Configuration: $3s^{2} 3p^4$

Copper Sulfide (Cu$_{n}$S$_{n}$)

Explanation:

Copper sulfides will always vary in composition (0.5 ≤ Cu/S ≤ 2) because their bonds are somewhat covalent and have complicated electronic band structures because of their high degree of delocalization.