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First I.E. 5d elements are higher than t...

First I.E. 5d elements are higher than those of 3d and 4d elements. This is due to
1) greater effective nuclear charge action on outer valence electrons.
2) greater effective nuclear charge is experience because of weak shielding effect of 4-f orbitals

A

only 1

B

only 2

C

1 and 2

D

none is correct

Text Solution

Verified by Experts

The correct Answer is:
C
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NIKITA PUBLICATION-D-AND F-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS
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