The rule states that for a given electron configuration, the lowest energy term is the one with the greatest value of spin multiplicity. This implies that if two or more orbitals of equal energy are available, electrons will occupy them singly before filling them in pairs.
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What is the maximum and minimum spin multiplicity?
When the value of the azimuthal quantum number is 3, the maximum and the minimum values of the spin multiplicities are 8 and 2 respectively. l=3 corresponds to f orbital. In an f orbital, the maximum number of unpaired electrons can be 7. Hence, S=27. The maximum spin multiplicity is 2S+1=2×27+1=8.
What do you mean by spin multiplicity?
The number of possible orientations, calculated as , of the spin angular momentum corresponding to a given total spin quantum number ( ), for the same spatial electronic wavefunction.
Why it is called maximum multiplicity?
This is because out of the various possible electronic configurations, only that configuration is correct for which the total spin value is maximum.
Which has maximum spin multiplicity p1 p2 p3 or p4?
So, here in the case of p-subshell p3 has maximum spin multiplicity.
What is the spin multiplicity formula?
Spin multiplicity is based on the number of unpaired electron, =2S+1. Where S=n(1/2).
What is the total spin of CR?
Total spin of the electrons in a chromium atom isCorrect answer is ‘3‘.
What is Hund’s rule of maximum multiplicity with example?
Example of hund’s rule (example of hund’s rule of maximum multiplicity) For example, a nitrogen atom’s electronic configuration would be 1s 2 2s 2 2p 3 . The same orbital will be occupied by the two 2s electrons although different orbitals will be occupied by the three 2p electrons in accordance to Hund’s rule.
What is singlet and triplet state?
Singlet state: All electrons in the molecule are spin paired. It is called a singlet because there is only one possible orientation in space. Triplet state: One set of electron spins is unpaired. It is called a triplet because there are three possible orientations in space with respect to the axis.
What is Hund’s rule Class 11?
Hunds Rule of Maximum Multiplicity rule states that for a given electron configuration, the term with maximum multiplicity falls lowest in energy. According to this rule electron pairing in p, d and f orbitals cannot occur until each orbital of a given subshell contains one electron each or is singly occupied.
How do you find the maximum multiplicity?
Atoms. The multiplicity of a state is defined as 2S + 1, where S is the total electronic spin. A high multiplicity state is therefore the same as a high-spin state. The lowest-energy state with maximum multiplicity usually has unpaired electrons all with parallel spin.
What is Hund’s rule simple definition?
Hund’s Rule. Hund’s rule: every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin.
What is Hund’s rule answer?
Hund’s rule states that: Every orbital in a sublevel is singly occupied before any orbital is doubly occupied. All of the electrons in singly occupied orbitals have the same spin (to maximize total spin).
What is the maximum spin multiplicity for 4d sub orbit?
Hence the maximum spin multiplicity for 4d-orbital is 6.
Which of the following is maximum spin?
Proton is the one who spins and the real culprit behind Electromagnetism.
What is the spin multiplicity of carbon?
For example, the ground state of a carbon atom is 3P. The superscript three (read as triplet) indicates that the multiplicity 2S+1 = 3, so that the total spin S = 1. This spin is due to two unpaired electrons, as a result of Hund’s rule which favors the single filling of degenerate orbitals.
What is the spin multiplicity of n2?
Nitrogen has 3 unpaired electrons in its outermost shell. So, S = Total spin = S = Now, spin multiplicity = 2S + 1 = 2 x + 1 = 4. Therefore, spin multiplicity of nitrogen = 4.
How do you find the spin multiplicity of a coordination compound?
All Answers (4) Spin multiplicity is given by 2S + 1, where S is the total electron spin for the molecule. Paired electrons have a net zero spin and do not contribute. For one unpaired electron (of spin 1/2), 2(1/2) + 1 = 2; the species is a doublet.
What is multiplicity of a molecule?
The multiplicity of a molecule is determined by the number of unpaired electrons that it contains. Most normal ground-state equilibrium structures consist solely of electron pairs and are called “singlets”. We say that these systems are “closed-shell molecules”.
What is low spin and high spin?
If the field is weak, it will have more unpaired electrons and thus high spin. In terms of wavelength, a field that absorbs high energy photons (in other words, low wavelength light) has low spin and a field that absorbs low energy photons (high wavelength light) has high spin.
What is high spin complex?
High spin-complex- is the complex which possesses a greater number of unpaired electrons in the d-orbitals of the central metal atom and it will be paramagnetic in nature.