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Identify the incorrect statement among t...

Identify the incorrect statement among the following

A

4f and 5f orbitals are equally shielded

B

d- block elements show irregular and erratic chemical properties among themsleves

C

La and Lu ha ve partially filled d orbitals and no other partialy filled orbitals

D

the chemistry of various lanthanoids is very similar

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The correct Answer is:
A
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  15. Which of the following is not an actinide?

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