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Lesson Flashcards: Electronic Configurations of Transition Metals Chemistry

Oxidation number

A number that represents how many electrons have been lost or gained from an atom of an element

Electronic configuration

The distribution of electrons in atomic orbitals for an atom or ion

Transition element

An element whose atoms have an incomplete d subshell or that can give rise to cations with an incomplete d subshell

The aufbau principle

The principle that electrons fill the lowest-energy atomic orbitals before they fill higher-energy atomic orbitals

Hund’s rule

Every orbital in a subshell is singly occupied before any orbital is doubly occupied

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