Here you can find some great information about the 15th element in the periodic table, "phosphorus." Content focuses on phosphorus' electrons, where you can find phosphorus in nature and in the home, and how phosphorus combines with...

Chem4Kids looks at the 18th element in the periodic table, argon. Content focuses on argon's electrons, where you can find argon in nature and in the home, and how argon combines with other elements.

The 17th element in the periodic table is defined, chlorine. Find out how many electrons chlorine has and where you can find it in nature and in the home.

Excellent source of information on phosphorus including its physical and chemical properties. Highly recommended.

Kid's learn about the science of chemical elements. Basic forms of matter made from a single type of atom.

This lesson will present the basic properties and characteristics of elements. It is 3 of 4 in the series titled "Characteristics of Elements."

This lesson will present the basic properties and characteristics of elements. It is 2 of 4 in the series titled "Characteristics of Elements."

Use your knowledge of groups and periods on the Periodic Table. When you are presented with three elements, pick the one that doesn't belong.

Through an online slide-show format, learn about the historical development of the Periodic Table of Elements.

A short summary of basic information on curium.

A nicely organized summary table with information on the properties of bromine. Very helpful and easy to follow.

Information about the element, Krypton, atomic number 36. Covers physical and atomic properties, how abundant it is on the Earth, how it was discovered, uses, and health effects from exposure.

A slideshow looking at the contributions of scientists over time to our understanding of atomic theory. Looks at models of the atom developed by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick, as...

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.

A quiz over stars and elements. Students can test their understanding of the star and element unit that covered over chemistry, periodic table of elements, and famous scientists. Quiz contains thirteen multiple choice questions.

Describes the discovery and naming of copernicum, the heaviest element on the Periodic Table, named after the 16th century scientist Nicolaus Copernicus.

This Webelements website provides a short but detailed definition of atomic radius. Includes links to other chemistry sites.

The periodic table arranges elements according to their properties. This page allows you to click on the element as it appears on the table and obtain information on its structure, behavior, and discovery.

This site provides a set of data tables summarizing the physical and chemical properties and data on radon.

Play this game and help to end world hunger! For every correct answer, ten grains of rice will be donated to the UN World Food Programme. Try this question set covering all the chemical elements of the Periodic Table. The level of the...

Play this game and help to end world hunger! For every correct answer, ten grains of rice will be donated to the UN World Food Programme. Try this question set covering the basic chemical elements of the Periodic Table. The level of the...

This unit covers introductory concepts of mixtures and solutions. Students think about how mixtures and solutions, and atoms and molecules can influence new technologies developed by engineers. The first lesson explores the fundamentals...

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

Introduces learners to atomic models of the past and present, focusing on the orbital model and an explanation of its basis. Learners then have the opportunity to "make an atom" and contrast it with an ion, followed by an isotope. The...