Tardigrade
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Tardigrade
Question
Chemistry
The figure below shows a unit cell of the mineral perovskite (the titanium atom is at the centre of the cube). Which of the following is a correct chemical formula for this mineral?
Q. The figure below shows a unit cell of the mineral perovskite (the titanium atom is at the centre of the cube). Which of the following is a correct chemical formula for this mineral?
2282
258
The Solid State
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A
C
a
8
T
i
O
6
B
C
a
T
i
O
C
C
a
2
T
i
O
3
D
C
a
T
i
O
3
Solution:
Effective number of
C
a
=
8
×
8
1
=
1
Effective number of
T
i
=
1
×
1
=
1
Effective number of
O
=
6
×
2
1
=
3
∴
Formula
=
C
a
T
i
O
3
