These elements are building blocks of matter and everything around us is made up of them. There are 118 elements in the periodic table, each with a unique symbol and atomic number.

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we use today. He announced his structure in 1869, but the challenge of ...

Copyright 1999, ScienCentral, Inc, and The American Institute of Physics. No portion of this web site may be reproduced without written permission. All Rights ...

Cal: OK, friends. Chemistry time and in the studio with me I have super science school teacher Mrs Roberts, who's gonna show us how to make a massive fizzing volcano. We're gonna have sparks, lava ...

Chemists use symbols and formulae to represent elements and compounds. Word equations and balanced chemical equations represent the changes that happen in chemical reactions. Mixtures - AQA There ...

Humans are made of many chemical elements that work together to create our complex bodies. The elements are like pieces of a puzzle, each playing a unique and essential role in maintaining our health.

Iron is the main ingredient in various forms of iron and steel, but the various types of metals contain other elements as well. Sometimes these elements are unwanted; other times they're ...