Untitled Flashcards Set

Ionization Energy

The amount of energy needed to remove an electron from an atom.

Electronegativity

An element's relative ability to attract electrons in a chemical bond.

Representative Elements

The elements in groups 1, 2, and 13 to 18 of the periodic table, often referred to as the main group.

Transition Metals

Elements found in groups 3 to 12 of the periodic table, also known as d-block elements.

Valence Electrons

Electrons in the last energy level of an atom.

Anion

An atom that gains electrons.

Cation

An atom that loses electrons.

Group

A vertical column of elements in the periodic table.

Period

A horizontal row of elements in the periodic table.

Periodic Law

The principle stating that when elements are arranged by atomic number, their properties repeat in a predictable pattern.

Isoelectronic

Atoms or ions that have the same electronic structure and the same number of valence electrons.