The following simulation displays electron configurations for elements in relation in relation to the element's position on the periodic table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses shared chemical bonds between two elements resulting in electronegative and electropositive outcomes.

This lesson explains what is represented by the atomic mass, and how it varies from one element to the next. It is 1 of 4 in the series titled "Atomic Mass."

This StudyCards stack enables students to review the vocabulary terms encountered in an introductory chemistry class.

During this exercise, practice finding the number of valence electrons in an element. [1:22]

This lesson will explain how the ionic radius changes over representative elements across rows and up and down columns on the periodic table. It is 1 of 3 in the series titled "Period Trends: Ionic Size."

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

An Wikipedia article on Glenn Seaborg discusses his accomplishments in the world of chemistry. It discusses his creation of the element Plutonium and his work with the Manhattan Project. Also provides some information on personal life...

This biography on scientist Dmitri Mendeleev details his childhood, gives information on his scientific studies, and discusses his formal presentation made to the Russian Chemical Society in which he detailed his findings on elements.

A short description of krypton and how it plays a role in the definition on the meter provided for by Chemical Society.

This site from the Wikipedia Encyclopedia provides an overview of the life of scientist Henry Moseley. This open-source encyclopedia site discusses his contribution to science and how he found a systematic relation between wavelength and...