Multiple choice

Which of the following is a correct statement?

  1. 5f orbital electrons are more shielded than 4f orbital electrons.

  2. Zr and Hf have almost the same atomic radius.

  3. Uranium belongs to lanthanide series.

  4. Lanthanides are silvery white metals because of d-d transition.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Zr and Hf have almost the same atomic radius because of lanthanide contraction.

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