Periodic Properties of the Elements

Flashcards covering key terms and concepts in the study of periodic properties of elements.

Periodic Table

A tabular arrangement of elements based on their atomic number, electron configuration, and recurring chemical properties.

Effective Nuclear Charge

The net positive charge experienced by an electron in a multi-electron atom, accounting for shielding by other electrons.

Ionization Energy

The energy required to remove an electron from an atom or ion in the gaseous state.

Electron Affinity

The energy change associated with the addition of an electron to a gaseous atom.

Cations

Positively charged ions that are formed when atoms lose electrons.

Anions

Negatively charged ions that are formed when atoms gain electrons.

Isoelectronic

A term used to describe ions or atoms that have the same number of electrons.

Alkali Metals

Group 1A elements that are soft, highly reactive metals.

Alkaline Earth Metals

Group 2A elements known for their reactivity and tendency to form +2 cations.

Metallic Character

A set of properties associated with metals, including luster, conductivity, and malleability.