13. Liquids, Solids & Intermolecular Forces
Face Centered Cubic Unit Cell
13. Liquids, Solids & Intermolecular Forces Face Centered Cubic Unit Cell
18PRACTICE PROBLEM
Greenockite (CdS) has a wurtzite structure with cell parameters: a = b = 4.271 Å, c = 6.969 Å. Another compound, cadmoselite (CdSe), also has wurtzite structure with cell parameters: a = b = 4.136 Å, c = 6.713 Å. Identify which of the two substances has a greater density given that a wurtzite structure has 2 formula units of the compound per unit cell.
Greenockite (CdS) has a wurtzite structure with cell parameters: a = b = 4.271 Å, c = 6.969 Å. Another compound, cadmoselite (CdSe), also has wurtzite structure with cell parameters: a = b = 4.136 Å, c = 6.713 Å. Identify which of the two substances has a greater density given that a wurtzite structure has 2 formula units of the compound per unit cell.