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Problem: Tausonite, a mineral composed of Sr, O, and Ti, has the cubic unit cell shown in the drawing .To see the full coordination environment of the other ions, we have to consider neighboring unit cells. How many oxygens are coordinated to strontium?

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Tausonite is a mineral with a repeating crystal unit.

The simplest repeating unit in a crystal is called a unit cell. Each unit cell is defined in terms of lattice point the points in space about which the particles are free to vibrate in a crystal.

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Problem Details

Tausonite, a mineral composed of Sr, O, and Ti, has the cubic unit cell shown in the drawing A cube has strontium as its corners. Inside the cube 6 oxygen atoms are bonded to a central titanium atom..

To see the full coordination environment of the other ions, we have to consider neighboring unit cells. How many oxygens are coordinated to strontium?

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