Consumer Chemistry Quarter 2

Abbreviation used to represent an element.

Table organizing elements by properties and atomic structure.

Arrangement of electrons in atomic orbitals.

Describes the relationship between mass, amount, and number of particles.

Represents the composition of a compound.

Bond formed by the electrostatic attraction between oppositely charged ions.

Bond formed by sharing electron pairs between atoms.

Electrons in the outermost shell of an atom.

Groups of three elements with similar properties, where the middle element's properties are the average of the other two.

An early attempt to organize elements by properties, stating that every eighth element has similar properties.

A table organizing elements by increasing atomic weight and similar properties, with gaps for undiscovered elements.

The chemical and physical properties of elements vary periodically with increasing atomic number.

Horizontal rows in the periodic table, defined by the number of electron shells in an atom.

Vertical columns in the periodic table, representing elements with similar chemical properties.

Elements in the main vertical columns of the periodic table, including alkali metals, alkaline earth metals, and halogens.

Elements in the center of the periodic table, known for their metallic properties and transition metals.

The most stable electron configuration of an atom, where electrons occupy the lowest energy levels.

An unstable electron configuration where electrons have absorbed energy and occupy higher energy levels.

Electrons fill orbitals in order of increasing energy levels, starting with the lowest energy level.

An orbital can hold a maximum of two electrons, but only if they have opposite spins.

Electrons will occupy orbitals singly with parallel spins before pairing up in any orbital.

A stable electron configuration with a full outermost shell, like that of a noble gas.

Atoms or ions with the same electron configuration.