Multiple Choice
What is the formula of the superconductor whose unit cell is shown below? (The Y and Ba atoms are in the middle of the cell.)
A) YBa2Cu3O9
B) YBa2Cu4O5
C) YBa2Cu2O7
D) YBa2Cu4O7
E) YBa2Cu3O7
Correct Answer:

Verified
Correct Answer:
Verified
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