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- Engineering
- Confused! kindly explain, The lanthanide contraction is responsible for the fact that
The lanthanide contraction is responsible for the fact that
- Option 1)
and
have about the same radius
- Option 2)
have similar oxidation state
- Option 3)
have about the same radius
- Option 4)
have the same oxidation state
Answers (1)
As we learnt in
Lanthanoid contraction -
The filling of if orbits before 5d orbits result regular decrease in atomic radii called Lanthanoid contraction or can say the size of radii not much increase.
- wherein
Due to Lanthanoid contraction size of 5d-series elements is smaller than 4d-series element, that's why Zr and Hf have almost same atomic radii.
Option 1)
and
have about the same radius
This option is incorrect
Option 2)
and
have similar oxidation state
This option is incorrect
Option 3)
and
have about the same radius
This option is correct
Option 4)
and
have the same oxidation state
This option is incorrect
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