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How many subshells and electrons are associated with n = 4?
- a)32, 64
- b)16, 32
- c)4, 16
- d)8, 16
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
How many subshells and electrons are associated with n = 4?a)32, 64b)1...
For nth orbital possible values of azimuthal quantum number (subshell), l are from 0 to (n-1). Total of 'n' values.
In n=4, l=0,1,2,3 thus there are 4 subshells i.e.s,p,d,f respectively.
Magnetic quantum number ml have values from -l to +l and total of 2l+1 values.
For n=4, possible values of l and ml are:
ml=0 for l=0; total ml values =1
ml=−1,0,1 for l=1; total ml values =3
ml=−2,−1,0,1,2 for l=2; total ml values =5
ml=−3,−2,−1,0,1,2,3 for l=3; total ml values =7
Total number of orbitals = total values of ml
for n=4,
∴1+3+5+7=16 orbitals
Each orbital can occupy maximum of two electron
Number of electrons =2×16=32
Therefore in n=4, number of subshells=4, orbitals=16 and number of electrons =32.
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Community Answer
How many subshells and electrons are associated with n = 4?a)32, 64b)1...
The question asks about the number of subshells and electrons associated with the principal quantum number (n) of 4.
Principal Quantum Number (n):
- The principal quantum number (n) describes the size and energy level of an electron's orbital.
- It can have integer values starting from 1 and increases in increments of 1.
- Each value of n corresponds to a different energy level or shell.
Subshells:
- Subshells are subdivisions within a shell and are represented by the letters s, p, d, and f.
- The number of subshells in a shell is equal to the value of n.
- For example, if n = 4, there will be 4 subshells.
Electrons:
- Electrons are distributed in subshells and orbitals within a shell according to certain rules.
- Each subshell can hold a specific number of electrons.
- The maximum number of electrons in a subshell can be calculated using the formula 2n^2, where n is the principal quantum number.
- For example, if n = 4, the maximum number of electrons in each subshell is 2(4^2) = 32.
Explanation:
According to the given options, the correct answer is option 'B' which states that there are 16 subshells and 32 electrons associated with n = 4.
To verify this answer, we can use the formula mentioned above:
- The number of subshells for n = 4 is indeed 4, as each value of n corresponds to a subshell.
- The maximum number of electrons in each subshell can be calculated using 2n^2:
- For the first subshell (s), n = 1, so the maximum number of electrons is 2(1^2) = 2.
- For the second subshell (p), n = 2, so the maximum number of electrons is 2(2^2) = 8.
- For the third subshell (d), n = 3, so the maximum number of electrons is 2(3^2) = 18.
- For the fourth subshell (f), n = 4, so the maximum number of electrons is 2(4^2) = 32.
Therefore, the correct answer is option 'B' which states that there are 16 subshells and 32 electrons associated with n = 4.
Principal Quantum Number (n):
- The principal quantum number (n) describes the size and energy level of an electron's orbital.
- It can have integer values starting from 1 and increases in increments of 1.
- Each value of n corresponds to a different energy level or shell.
Subshells:
- Subshells are subdivisions within a shell and are represented by the letters s, p, d, and f.
- The number of subshells in a shell is equal to the value of n.
- For example, if n = 4, there will be 4 subshells.
Electrons:
- Electrons are distributed in subshells and orbitals within a shell according to certain rules.
- Each subshell can hold a specific number of electrons.
- The maximum number of electrons in a subshell can be calculated using the formula 2n^2, where n is the principal quantum number.
- For example, if n = 4, the maximum number of electrons in each subshell is 2(4^2) = 32.
Explanation:
According to the given options, the correct answer is option 'B' which states that there are 16 subshells and 32 electrons associated with n = 4.
To verify this answer, we can use the formula mentioned above:
- The number of subshells for n = 4 is indeed 4, as each value of n corresponds to a subshell.
- The maximum number of electrons in each subshell can be calculated using 2n^2:
- For the first subshell (s), n = 1, so the maximum number of electrons is 2(1^2) = 2.
- For the second subshell (p), n = 2, so the maximum number of electrons is 2(2^2) = 8.
- For the third subshell (d), n = 3, so the maximum number of electrons is 2(3^2) = 18.
- For the fourth subshell (f), n = 4, so the maximum number of electrons is 2(4^2) = 32.
Therefore, the correct answer is option 'B' which states that there are 16 subshells and 32 electrons associated with n = 4.
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How many subshells and electrons are associated with n = 4?a)32, 64b)16, 32c)4, 16d)8, 16Correct answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about How many subshells and electrons are associated with n = 4?a)32, 64b)16, 32c)4, 16d)8, 16Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many subshells and electrons are associated with n = 4?a)32, 64b)16, 32c)4, 16d)8, 16Correct answer is option 'B'. Can you explain this answer?.
How many subshells and electrons are associated with n = 4?a)32, 64b)16, 32c)4, 16d)8, 16Correct answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about How many subshells and electrons are associated with n = 4?a)32, 64b)16, 32c)4, 16d)8, 16Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many subshells and electrons are associated with n = 4?a)32, 64b)16, 32c)4, 16d)8, 16Correct answer is option 'B'. Can you explain this answer?.
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