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Write the Atomic and ionic radii |
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Answer» radii of the elements of the transition SERIES decrease gradually from left to right. As we move across a transition series from left to right the nuclear charge increases by one unit at a time. The last filled electron enters a penultimate (n-1)d subshell. However, d orbitals in an ATOM are less penetrating or more diffused and, THEREFORE d electrons OFFER smaller screening effect. The RESULT is that effective nuclear charge also increases as the atomi number increases along a transition series. Hence the atomic radii decrease gradually across a transition series from left to right. |
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