Answer
425.4k+ views
Hint:
Lanthanides and Actinides are elements with unfilled f orbitals. These elements are placed in separate positions in the periodic table. They show variable oxidation states as well.
Complete step by step answer:
-The chemistry of actinoids is not so smooth as that of the lanthanides.
-Lanthanoids primarily show three oxidation states i.e. +2, +3 and +4. Among these oxidation states, +3 state is the most common.
-They display a limited number of oxidation states because the energy difference between 4f, 5d and 6s orbitals is quite large.
-On the other hand, the energy difference between 5f, 6d and 7s orbital is very less. Hence, actinoids display a large number of oxidation states.
For example,
Uranium and Plutonium display +3, +4 , +5 and +6 oxidation states due to small energy gap between 5f and 6d orbitals, while neptunium displays +3, +4, +5 and +7 oxidation states.
Note:
The steady decrease in atomic and ionic radii with increase in atomic number of actinide elements that is positive nuclear charge is referred to as actinide contraction and it is analogous to lanthanide contraction.
Lanthanides and Actinides are elements with unfilled f orbitals. These elements are placed in separate positions in the periodic table. They show variable oxidation states as well.
Complete step by step answer:
-The chemistry of actinoids is not so smooth as that of the lanthanides.
-Lanthanoids primarily show three oxidation states i.e. +2, +3 and +4. Among these oxidation states, +3 state is the most common.
-They display a limited number of oxidation states because the energy difference between 4f, 5d and 6s orbitals is quite large.
-On the other hand, the energy difference between 5f, 6d and 7s orbital is very less. Hence, actinoids display a large number of oxidation states.
For example,
Uranium and Plutonium display +3, +4 , +5 and +6 oxidation states due to small energy gap between 5f and 6d orbitals, while neptunium displays +3, +4, +5 and +7 oxidation states.
Note:
The steady decrease in atomic and ionic radii with increase in atomic number of actinide elements that is positive nuclear charge is referred to as actinide contraction and it is analogous to lanthanide contraction.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)