Indicate the type of hybrid orbitals used by the central atom in tef4

Explanation:

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The type of hybrid orbitals used by the tellurium could be found via the following formula:

In this case, tellurium has six valance electrons and four monovalent bonds (those four fluorines), thus:

Such result, indicates a hybridisation which accounts for one ‘s’, three ‘p’ and one ‘d’ orbitals of almost equal energy which give five identical and degenerated hybrid orbitals arranged in trigonal bipyramidal symmetry.

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d.) circle motion requires a force to give it a centripetal acceleration.