Basic statistics, history, and properties of the halogen element, astatine.

A covalent bond is formed between non metal atoms, which combine together by sharing electrons. Covalent compounds have no free electrons and no ions so they don't conduct electricity.

Description of graphite and its basic properties. Also a comparison to diamond and how they differ.

This section of the lesson module focuses on covalent bonds, which are formed between non-metal atoms that share a pair of electrons. It includes links to a video and a test. Other types of chemical bonds are covered elsewhere in the...

If you've ever wondered how things are made - products like candy, cars, airplanes, or bottles - or if you've been interested in manufacturing processes, like forging, casting, or injection molding, then you've come to the right place....

Explains different sections of the periodic table, and how they are used.

A clear explanation of the facets involved in electroplating, the materials and surfaces, the sequence of operations.

Describes the organization of the periodic table of elements and the different groups in it.

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.

The Upper Harz mining water management system, which lies south of the Rammelsberg mines and the town of Goslar, has been developed over a period of some 800 years to assist in the process of extracting ore for the production of...