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 ...

These elements—wood, fire, earth, metal and water—give us even more information about the year. For example, I was born in 1989, the Year of the Earth Snake. 2025 is also a Year of the Snake ...

The conclusion in 1902 by Sir Ernest Rutherford and myself with regard to the element thorium was of this direct and simple character. As often as the constituents responsible for the radio ...

An element is a substance that cannot be broken down into any other substance. Every element is made up of its own type of atom. This is why the chemical elements are all very different from each ...