Advertisements
Advertisements
प्रश्न
What is actinoid contraction?
Advertisements
उत्तर
The general trend in lanthanoids is observable in the actinoids as well. There is a gradual decrease in the size of atoms or M3+ ions across the series. This may be referred to as the actinoid contraction.
APPEARS IN
संबंधित प्रश्न
How would you account for the following:
The chemistry of actinoids is more complicated as compared to lanthanoids.
Give a reason for the following:
Actinoids show irregularities in their electronic configurations.
Write on similarity between the chemistry of lanthanoids and actinoids.
With reference to structural variability and chemical reactivity, write the differences between lanthanoids and actinoids
Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element.
Write four points of distinction between Lanthanoids and Actinoids.
How do you prepare:
Actinoid elements show wide range of oxidation states.
The number of unpaired f-electrons in ytterbium (Z = 70) is ____________.
The highest oxidation state in plutonium (At. no. = 94) is ______.
Assertion: Actinoids form relatively less stable complexes as compared to lanthanoids.
Reason: Actinoids can utilise their 5f orbitals along with 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.
