Hund S Rule Definition
This rule deals with reducing the repulsion between electrons.
Hund s rule definition. Hund s rule states that a larger total spin state of an atom sometimes makes the atom more stable. Electrons are negatively charged and as a result they repel each other.
Each orbital in a sublevel is separately occupied before any orbital is doubly occupied. Example 1 consider the different ways in which a pair of electrons might be arranged in p orbitals.
All of the electrons in separately occupied orbitals have an equivalent spin to maximize total spin. Hund s rule of maximum multiplicity is a rule based on observation of atomic spectra which is used to predict the ground state of an atom or molecule with one or more open electronic shells the rule states that for a given electron configuration the lowest energy term is the one with the greatest value of spin multiplicity.
Electrons tend to minimize repulsion by occupying their own orbitals rather than sharing an orbital with another electron. 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.
The superscript 3 is the value of the multiplicity 2s 1 3. 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. Hund s first rule now states that the ground state term is 3 p which has s 1.
According to the first rule electrons always enter an empty orbital before they pair up. This implies that if two or more orbitals of equal energy are.
All of the electrons in singly occupied orbitals have a similar spin to maximize total spin. According to hund s rule.
Hund s rule of maximum multiplicity is a rule based on observation of atomic spectra which is used to predict the ground state of an atom or molecule with one or more open electronic shells. Hund s rule states that the lowest energy electron configuration the ground state in any electron subshell is the one with the greatest number of parallel electron spins.
Definition of hund s rule. Hund s rule states that each orbital in a subshell is only obtained before any orbital is double involved.
