Periodic Table Overview

These flashcards cover key concepts and vocabulary related to the periodic table based on the provided lecture notes.

Periodic Table

A table that organizes elements by increasing atomic number and similar chemical properties.

Atomic Number

The number of protons in the nucleus of an element.

Periods

Horizontal rows in the periodic table, numbered 1 through 7.

Groups or Families

Vertical columns in the periodic table that represent elements with similar chemical properties.

Main Group Elements

Elements in the two main blocks of the periodic table, representing a range of chemical activity.

Metalloids

Elements that have intermediate properties between metals and nonmetals, located along the metalloid line.

Alkali Metals

Group 1A elements, excluding hydrogen, known for being highly reactive.

Alkaline Earth Metals

Group 2A elements, known for being less reactive than alkali metals.

Halogens

Group 7A elements, known for being very reactive nonmetals.

Noble Gases

Group 8A elements, known for being chemically inert and existing as gaseous atoms.

Transition Metals

Elements in the central block of the periodic table known for their ability to form various oxidation states.

Inner Transition Metals

Elements in the bottom two rows of the periodic table, including lanthanides and actinides.