In-class Exercise 3 Name ________________________________
Student ID ________________________________
Submit for credit by uploading your work to the Assignments section of myCourselink no later
than 11:59 pm on Sept. 27, 2020. For participation credit your work must demonstrate a
reasonable attempt at the following question!
1. Consider GaP, a III-V binary compound semiconductor, with a lattice constant of 5.45 Å.
The atomic mass of Ga is 69.72 u and the atomic mass of P is 30.98 u. GaP crystallizes in a
zinc blende structure.
a) What is the volume density of Ga in GaP? Of P?
b) Determine the mass density of GaP in g/cm3.