Information about the element, Mercury, atomic number 80. Covers physical and atomic properties, where it is found, and health-related regulations. Also discusses its three main forms, uses for mercury, ways it spreads throughout the...

Information about the element, Plutonium, atomic number 94. Covers physical properties, atomic properties, how abundant it is on the Earth, and details about health-related regulations. Discusses reactor- and weapons-grade plutonium, and...

Information about the heavy metal, Lead, atomic number 82. Gives some interesting historical details about lead's use in the past. Covers physical properties, atomic properties, how abundant it is on the Earth, and details about...

This resource provides information on the periodic table constructed by Dmitri Mendeleev.

Discusses how to find scientific and technical reference materials online, e.g., the periodic table and formulas, and some advantages of online resources over print.

Kids learn about the transition metals of the periodic table. Which elements are in this group. Properties, similarities, and other facts.

Explore the halogens of the periodic table. Learn about which elements are in this group and the properties, similarities, and other facts.

This resource presents thorough geological data on the iron containing mineral hematite, with links to other iron containing minerals.

Match the following chemical symbols to their corresponding elements.

This site provides elemental information which may not be found in many other sites. Here you can find historical information, common uses and even the approximate going price for a gram of the element.

An excellent summary of the basic data about cobalt, along its properties and how it is isolated chemically.

An extremely thorough summary of the properties and uses of magnesium. Very easy to follow.

Nice summary of the basic facts known about berkelium. Easy to follow.

A summary of the basic data on mendelevium, its isotopes and basic properties.

Excellent summary of the basics on rhenium.

A summary of the basic properties and uses of iridium, as well as a few random facts about it.

Geared towards helping Dartmouth College students starting General Chemistry Laboratory, this site offers resources important for anyone in the lab. Learn why you should keep a lab notebook and how to keep yourself and others safe. This...

A video and a short quiz on the parts of an atom, the periodic table, and molecules.

As part of the introduction to the Periodic Table of the Elements, young scholars will be introduced to the idea of atoms, molecules, and chemical reactions.

A slide show presentation which demonstrates how to identify the number of valence electrons an element has based on its location on the periodic table.

The second family in the periodic table is the alkaline earth metals found in the second column from the left. Meet the family and get to familiar with why this is the second most reactive group of elements.

Find out about the life and work of Dmitri Mendeleev, and learn how he discovered what is now known as the Periodic Table of Elements.

This lesson will explain how the atomic radius changes over representative elements across rows and up and down columns on the periodic table. It is 3 of 3 in the series titled "Periodic Trends: Atomic Radius."

This lesson will explain how the ionization energy changes over representative elements across rows and up and down columns on the periodic table. It is 3 of 3 in the series titled "Periodic Trends: Ionization Energy."