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All transition elements are d-block elem...

All transition elements are d-block elements, but all d-block elements are not transition elements. Which the following is true.

A

Transition elements have completely filled d-orbitals

B

All d-block elements have partialy filled d-orbitals

C

Transition elements have partialy filled d-orbitals either in atomic or ionic state

D

In d-block elements differentiating electron eneter in to d-orbitals of outer most shell.

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