
How many orbitals are there in the seventh shell?
Answer
443.7k+ views
Hint: The orbitals are formed only when they possess the same value of principal quantum number. The number of orbitals present inside the shell is square of the principal quantum number which is given as ${n^2}$.
Complete step by step answer:
There are three quantum numbers which help to determine the orbital where the electrons are present. The three quantum numbers are Principal quantum number, Azimuthal quantum number and magnetic quantum number. The principal quantum number is denoted by n which describes the size of the orbital. The angular quantum number or the azimuthal quantum number is denoted by l which describes the shape of the orbital. The magnetic quantum number is denoted by m which describes the orientation of the space of the particular orbital.
The orbitals which have the same value of principal quantum number (n) generate a shell. The orbitals which are present inside the shell are divided into subshells and possess the same value of angular quantum numbers.
The number of orbitals present in the shell is the square of the principal quantum number which is given as shown below.
${n^2}$
For example: The orbitals present in the second shell are given as shown below.
$\Rightarrow {(2)^2}$
$\Rightarrow 4$
In the question, we have asked for the number of orbitals present in the seventh shell, so the number of orbitals is given as shown below.
$\Rightarrow {(7)^2}$
$\Rightarrow 49$
Therefore, the total number of orbitals present in the seventh shell is 49.
Note:
The maximum electron an orbital can hold is two and both the electron should have the opposite. In the seventh shell 49 orbitals are present so total electrons present in 49 orbital is 98.
Complete step by step answer:
There are three quantum numbers which help to determine the orbital where the electrons are present. The three quantum numbers are Principal quantum number, Azimuthal quantum number and magnetic quantum number. The principal quantum number is denoted by n which describes the size of the orbital. The angular quantum number or the azimuthal quantum number is denoted by l which describes the shape of the orbital. The magnetic quantum number is denoted by m which describes the orientation of the space of the particular orbital.
The orbitals which have the same value of principal quantum number (n) generate a shell. The orbitals which are present inside the shell are divided into subshells and possess the same value of angular quantum numbers.
The number of orbitals present in the shell is the square of the principal quantum number which is given as shown below.
${n^2}$
For example: The orbitals present in the second shell are given as shown below.
$\Rightarrow {(2)^2}$
$\Rightarrow 4$
In the question, we have asked for the number of orbitals present in the seventh shell, so the number of orbitals is given as shown below.
$\Rightarrow {(7)^2}$
$\Rightarrow 49$
Therefore, the total number of orbitals present in the seventh shell is 49.
Note:
The maximum electron an orbital can hold is two and both the electron should have the opposite. In the seventh shell 49 orbitals are present so total electrons present in 49 orbital is 98.
Recently Updated Pages
Master Class 11 Accountancy: Engaging Questions & Answers for Success

Express the following as a fraction and simplify a class 7 maths CBSE

The length and width of a rectangle are in ratio of class 7 maths CBSE

The ratio of the income to the expenditure of a family class 7 maths CBSE

How do you write 025 million in scientific notatio class 7 maths CBSE

How do you convert 295 meters per second to kilometers class 7 maths CBSE

Trending doubts
Which are the Top 10 Largest Countries of the World?

Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

What is a transformer Explain the principle construction class 12 physics CBSE

Draw a labelled sketch of the human eye class 12 physics CBSE

What is the Full Form of PVC, PET, HDPE, LDPE, PP and PS ?

How much time does it take to bleed after eating p class 12 biology CBSE
