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Questions and Answers
Which electron configuration is correct for Nickel when it forms a +3 ion?
Which electron configuration is correct for Nickel when it forms a +3 ion?
Which element is an exception to the filling order and has a different electron configuration depending on whether it forms a +1 or +2 ion?
Which element is an exception to the filling order and has a different electron configuration depending on whether it forms a +1 or +2 ion?
What is the correct electron configuration for Copper when it forms a +2 ion?
What is the correct electron configuration for Copper when it forms a +2 ion?
What is the maximum number of electrons that can occupy an s orbital?
What is the maximum number of electrons that can occupy an s orbital?
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Deduce the maximum number of electrons that can occupy the subshell of f orbitals.
Deduce the maximum number of electrons that can occupy the subshell of f orbitals.
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Which element has an electron configuration that ends in 4p5?
Which element has an electron configuration that ends in 4p5?
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What does the principal quantum number 'n' represent?
What does the principal quantum number 'n' represent?
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For an electron with n = 2, what are the possible values of l?
For an electron with n = 2, what are the possible values of l?
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What is the maximum number of electrons that can be described by n = 4 and l = 2?
What is the maximum number of electrons that can be described by n = 4 and l = 2?
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Which set of quantum numbers represents a 'p' orbital?
Which set of quantum numbers represents a 'p' orbital?
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How many total orbitals are there when n=5?
How many total orbitals are there when n=5?
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Which complete set of quantum numbers represents a valence electron in an atom?
Which complete set of quantum numbers represents a valence electron in an atom?
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How many electrons can occupy all of the n=3 orbitals?
How many electrons can occupy all of the n=3 orbitals?
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What is the maximum number of electrons that can occupy the l=1 shell with n=4?
What is the maximum number of electrons that can occupy the l=1 shell with n=4?
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What are the possible values of ml for an electron in a 3d orbital?
What are the possible values of ml for an electron in a 3d orbital?
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In which subshell can an electron with n=5 and l=1 be found?
In which subshell can an electron with n=5 and l=1 be found?
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What is the value of l for an electron in a 5f orbital?
What is the value of l for an electron in a 5f orbital?
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How many electrons can inhabit all of the n=2 orbitals?
How many electrons can inhabit all of the n=2 orbitals?
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Study Notes
Electron Configurations
- Nickel (Ni) in a +3 ion has the electron configuration [Ar] 3d^7.
- Copper (Cu) in a +2 ion has the electron configuration [Ar] 3d^9.
- Silver (Ag) is an exception to the filling order, showing different configurations for +1 ([Kr] 4d^10) and +2 ([Kr] 4d^9) ions.
Electron Capacity in Orbitals
- An s orbital can hold a maximum of 2 electrons.
- The f subshell can accommodate a maximum of 14 electrons.
Atomic Identification
- The element with an electron configuration ending in 4p^5 is Bromine (Br).
Quantum Numbers
- The principal quantum number 'n' indicates the energy level and distance of an electron from the nucleus.
- For n = 2, the possible values of the azimuthal quantum number (l) are 0 and 1, corresponding to s and p orbitals, respectively.
- The maximum number of electrons for n = 4 and l = 2 (d orbitals) is 10.
Orbitals and Electrons
- A 'p' orbital is represented by the quantum numbers where l = 1.
- At n = 5, there are a total of 25 orbitals: 1s, 3p, 5d, and 7f.
- A complete set of quantum numbers representing a valence electron typically has n equal to the highest principal quantum number of the atom.
Electron Occupancy
- All n=3 orbitals can hold a maximum of 18 electrons.
- The maximum number of electrons that can occupy the l=1 shell with n=4 is 6.
- Possible values of magnetic quantum number (ml) for an electron in a 3d orbital are -2, -1, 0, +1, +2.
- An electron with n=5 and l=1 is found in the 5p subshell.
- The value of l for an electron in a 5f orbital is 3.
- All n=2 orbitals can accommodate a total of 8 electrons.
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Description
Learn about the four quantum numbers, their possible values, and what they represent in the context of quantum mechanics. Understand the significance of n (Principal Quantum Number), l (Secondary Quantum Number), ml (Magnetic Quantum Number), and ms (Spin Quantum Number).
