Trends run through the periodic table, with nonmetallic character (keeping their own electrons) increasing from left to right across a period, and from down to up across a group, and metallic ...

Different shells can hold different maximum numbers of electrons. Electrons occupy shells starting with the innermost one. They begin to occupy the next shell when a shell becomes full.

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance ... The idea behind the explanation is that when an electron falls from a higher ...

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 ...

Want to learn more about this centerpiece of chemistry? Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles, and check out ...

For the last fifty or so years, the periodic table has been incomplete. Elements after uranium on the periodic table have been synthesized for the past few decades, but there were always a few ...

Element 103 in the periodic table is called lawrencium ... Although it has not been possible to make even indirect observations of this configuration, the calculations strongly suggest that the most ...

Topics include quantitative tools (measurements, precision, and accuracy), substances (formulas/names, composition, solutions, electrolytes, and properties of gases), chemical reactions (precipitation ...

Ivan Dmochowski ponders how xenon, though initially slow to earn a spot in the periodic table, is now at the forefront of advances in science and technology. For all their nobility, elements of ...

Uranium, belonging to the periodic table's actinide elements, has long intrigued scientists due to its complex electron configurations. Its unusual and diverse bonding characteristic manifests ...

But this pretty, iridescent metal, found near the bottom of the periodic table, exhibits some extraordinary properties ... Bismuth is an example of a diamagnetic material, yet this is not the behavior ...