| 1. | Mononuclear metal carbonyls contain only one metal atom as the central atom.
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| 2. | None of the triangles of coordinating atoms and the central atom are coplanar.
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| 3. | The central atom or ion, together with all ligands comprise the coordination sphere.
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| 4. | The central atoms or ion and the donor atoms comprise the first coordination sphere.
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| 5. | The central atom in these endohedral complexes is located in the center of the cage.
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| 6. | Therefore, the central atom is predicted to adopt a " linear " geometry.
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| 7. | The molecule has a distance between sulfur atoms of and angle at the central atom of.
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| 8. | The triangles of coordinating atoms and the central atom have two coplanar, and one perpendicular.
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| 9. | The number of donor atoms attached to the central atom or ion is called the coordination number.
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| 10. | The " A " represents the central atom and always has an implied subscript one.
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