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 ...

The zigzag, staircase, line in the diagram of the periodic table above separates ... Hydrogen is a non-metal, but it is often put in the middle. Notice that most elements are metals, rather ...

Bismuth, the 83rd element in the periodic table, has been known since ancient times, but was often confused with lead and tin. In 1753, Claude François Geoffroy from France demonstrated that ...

Spraying Windex onto the samples produces a color that depends on the metal residing in the dirt. By comparing colors across samples ... As part of the ChemClub's 10 th Anniversary, we asked clubs to ...

The discovery provides new understanding of how berkelium and other actinides behave relative to their peers in the periodic table," said Stefan Minasian, a scientist in Berkeley Lab's Chemical ...