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प्रश्न
Compare the chemistry of the actinoids with that of lanthanoids with reference to chemical reactivity.
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उत्तर
Chemical reactivity - In the lanthanide series, the earlier members of the series are more reactive. They have reactivity that is comparable to Ca. With an increase in the atomic number, the lanthanides start behaving similar to Al. Actinoids, on the other hand, are highly reactive metals, especially when they are finely divided. When they are added to boiling water, they give a mixture of oxide and hydride. Actinoids combine with most of the non-metals at moderate temperatures. Alkalies have no action on these actinoids. In case of acids, they are slightly affected by nitric acid (because of the formation of a protective oxide layer).
संबंधित प्रश्न
Give a reason for the following:
Actinoids show irregularities in their electronic configurations.
Why do actinoids show a wide range of oxidation states?
With reference to structural variability and chemical reactivity, write the differences between lanthanoids and actinoids
Write one similarity and one difference between the chemistry of lanthanoid and actinoid elements.
What is the position of actinoids in periodic table ?
Actinoid series begins at ____________ and ends at ____________.
The highest oxidation state in plutonium (At. no. = 94) is ______.
Which among the following actinoids exhibits highest oxidation state +7?
Which of the following properties is NOT of actinoids?
Which among the following elements is radioactive?
Maximum oxidation state exhibited by Chlorine is ______.
Which of the following oxidation state is common for all lanthanoids?
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
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.
The incorrect statement among the following is:
What is actinoid contraction?
Why do actinoids show variable oxidation states?
What are actinoids? Give their general electronic configuration.
