Students interpret the information given in the periodic table to describe the arrangement of electrons on the energy levels around an atom.

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will sse the Periodic Table to identify and explain the properties of chemical families, including alkali metals, alkaline...

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site focuses specifically on the Periodic Table of Elements with information on the table's organization methods along with...

An explanation of atomic structure and the element groups in the periodic table using plain language. Supported by diagrams and charts.

[Free Registration/Login Required] Discover the composition of matter and the relationship between matter, atoms, and elements. Students will learn the differences between elements and compounds, and how molecules are formed. Chemical...

Wikipedia provides the definition of the term, "Atomic number," a term used in chemistry and physics to represent the number of protons in the nucleus of an atom.

Study chemical bonding in chemistry including atoms, valence electrons, ionic and covalent bonding, and how molecules are formed on this site!

This lesson will define an isotope and demonstrate how to determine the average atomic mass of an element. It is 2 of 9 in the series titled "Isotopes."

This lesson will define an isotope and demonstrate how to determine the average atomic mass of an element. It is 8 of 9 in the series titled "Isotopes."

This lesson will introduce isotopes, and explain how they differ from other elements. It will also show that some isotopes are unstable and emit particles and/or radiation. It is 7 of 9 in the series titled "Isotopes."

This lesson will define an isotope and demonstrate how to determine the average atomic mass of an element. It is 4 of 9 in the series titled "Isotopes."

This lesson will introduce isotopes, and explain how they differ from other elements. It will also show that some isotopes are unstable and emit particles and/or radiation. It is 5 of 9 in the series titled "Isotopes."

Learn about naming chemical compounds in chemistry including conventions, the order of the elements, metals, non-metals, acids, and examples on naming on this site.

Get some information about some famous chemists who made impacts on their fields! These scientists helped to develop the laws of chemistry and discovered many of the elements.

When two or more atoms combine they give rise to a molecule. A molecule can be made up of many atoms of the same element. There are 112 elements known to man, so can you imagine the different permutations and combinations of molecules...

ChemCenter, available from the American Chemical Society, provides chemistry news, reference sources and other public services.

An introduction to the College Board's AP Chemistry course, which is designed to be equivalent to a first year college chemistry course.

The atoms around you have existed for billions of years- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form...

This page is about using RSS and Atom, from a non-technical standpoint.If you are interested in creating RSS feeds, see this RSS Workshop, or Atom for Publishers for Atom.

Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. Group 1 elements are reactive metals called the alkali...

This lesson focuses on the periodic table and the configurations. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic configurations model how electrons are arranged in atoms. A link to...

A chemistry tutorial highlighting historical development of the atomic theory of matter and the periodic table of elements.

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

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