Chemistry Lecture on Electron Configurations and Lab Safety

These flashcards cover key concepts related to lab safety and electron configurations discussed in the lecture.

Core electrons

Electrons that are not involved in bonding, typically found in filled orbitals.

Valence electrons

Electrons with the highest principal quantum number, involved in chemical bonding.

Cation

A positively charged ion formed by the removal of electrons.

Anion

A negatively charged ion formed by the addition of electrons.

Electrons configuration

The distribution of electrons in an atom or ion across its orbitals.

Isoelectronic

Species with the same number of electrons and electron configuration in similar orbitals.

Noble gas configuration

A shorthand notation for electron configuration using the nearest noble gas symbol.

Orbital filling order

The sequence in which electrons occupy orbitals based on increasing energy.

Periodic table regions

The divisions of the periodic table into s-block, p-block, d-block, and f-block areas.

Formal charge

A valuation of the charge of an atom in a molecule, used for predicting stability.