Answer
349.2k+ views
Hint :We know that lanthanide series consists of fourteen elements following the lanthanum element. F-block elements consist of two series Lanthanoid and Actinoid, they are placed in group three. They occupy period six and period seven of the periodic table respectively.
Complete Step By Step Answer:
The modern periodic table consists of $ 118 $ elements arranged in a total of eighteen groups and seven periods. The vertical columns represent the groups and the horizontal rows represent the periods. We know there are four different blocks in the periodic table. Each block corresponds to the filling of electrons in the corresponding orbital as mentioned in their name. For example the f- block corresponds to the following of electrons in the f- orbital of the atoms. These elements make up the f- block. The f-block consists of two periods. The first period elements that correspond to the filling of $ 4f- $ orbital are known as Lanthanide while the second period elements in the f- block that correspond to the filling of $ 5f- $ orbitals are actinides. Collectively, both lanthanides and actinides are known as the f block elements.
Lanthanides and actinides are in periods six and seven, respectively. Generally, they are placed underneath the periodic table. The lanthanides are between Barium and Hafnium. The actinides are between Radium and Rutherfordium. Lanthanides and actinides are in periods six and seven, respectively.
Note :
Remember that the Lanthanide series consists of $ 14 $ elements which follow lanthanum. The f block elements are placed at the bottom of the periodic table. Also the f block elements are called inner transition series. Lanthanum closely resembles Lanthanoid.
Complete Step By Step Answer:
The modern periodic table consists of $ 118 $ elements arranged in a total of eighteen groups and seven periods. The vertical columns represent the groups and the horizontal rows represent the periods. We know there are four different blocks in the periodic table. Each block corresponds to the filling of electrons in the corresponding orbital as mentioned in their name. For example the f- block corresponds to the following of electrons in the f- orbital of the atoms. These elements make up the f- block. The f-block consists of two periods. The first period elements that correspond to the filling of $ 4f- $ orbital are known as Lanthanide while the second period elements in the f- block that correspond to the filling of $ 5f- $ orbitals are actinides. Collectively, both lanthanides and actinides are known as the f block elements.
Lanthanides and actinides are in periods six and seven, respectively. Generally, they are placed underneath the periodic table. The lanthanides are between Barium and Hafnium. The actinides are between Radium and Rutherfordium. Lanthanides and actinides are in periods six and seven, respectively.
Note :
Remember that the Lanthanide series consists of $ 14 $ elements which follow lanthanum. The f block elements are placed at the bottom of the periodic table. Also the f block elements are called inner transition series. Lanthanum closely resembles Lanthanoid.
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)