How many electrons in an atom can have n = 3 and l = 2?
For l=2 (d), orbitals = 5. Electrons = 10.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
#quantum numbers
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The number of electrons in an atom with quantum numbers n = 4, l = 1, mₗ = 0 is:
One specific 4p orbital holds 2 electrons.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
Which orbital is represented by the quantum numbers n = 3, l = 1?
n=3, l=1 corresponds to 3p orbital.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
The maximum number of electrons in an atom with n = 3 is:
Maximum electrons = 2n² = 18.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
How many possible values of mₛ are there for an electron with n = 4, l = 2, mₗ = 1?
For a specific orbital, mₛ = +1/2 or -1/2. Total = 2.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
What is the maximum number of orbitals in the n = 2 energy level?
Number of orbitals = n² = 4.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
How many orbitals are present in the n = 3 energy level of an atom?
Number of orbitals = n² = 9 (3s:1, 3p:3, 3d:5).
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
How many electrons can occupy the 4d subshell?
For l=2 (d subshell), orbitals = 5. Electrons = 5×2 = 10.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Shapes of Orbitals - s p d f and Nodes and Radial Probability
How many electrons in an atom can have the quantum numbers n = 3 and mₛ = +1/2?
For n=3, 9 orbitals × 1 (half with +1/2) = 9.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Quantum Numbers - Principal Azimuthal Magnetic Spin
What is the maximum number of electrons that can occupy the subshell with principal quantum number n = 2 and azimuthal q
For l=1 (p), orbitals = 3. Electrons = 6.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Quantum Numbers - Principal Azimuthal Magnetic Spin
How many orbitals in an atom can have the quantum numbers n = 4 and l = 3?
For l=3 (f), orbitals = 2l+1 = 7.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Quantum Numbers - Principal Azimuthal Magnetic Spin
How many possible sets of quantum numbers (n, l, mₗ, mₛ) are there for electrons in the n = 4 energy level?
Orbitals = 16. Sets = 32.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Quantum Numbers - Principal Azimuthal Magnetic Spin