In a unit cell: atoms have different contribution depending on their location
corner atoms 1/8
atoms in center 1
atoms in face of the cube 1/2
atoms in edge of the cube 1/4
2 atoms in center → As
8 corner atoms + 4 edge atoms → Ni
The unit cell for nickel arsenide is shown below. What is the formula of this compound?
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.