Saved Bookmarks
| 1. |
following is the fact about the newly discover superconductor fo C_(60) (fullerence).the alkali mental fulleride superconductor M_(3)C_(60)has a cubic closesr - packed (face0centered cubic) arrangement of nearly spherical C_(2-)^(60) anions with M^(+) cations in the holes between the larger C_(3-)^(60) ions, the holes are of two types - octahedral hoels , which are surrounded octachedralby six C_(3-)^(60) ions. tetarahedral holes , which are surrounded tetrahedrally by for C_(3-) ^(60) ions . how many C_(3-)^(60) ions , octahedral holes , and tetrachedral holesare prsent pre unit cell |
|
Answer» 5,4,4 |
|