So how has the periodic table been put together? Mrs Roberts: Well, the modern periodic table shows us all of the elements arranged in rows, which are called periods. It has changed a lot over the ...

In 1843, Leopold Gmelin worked with the Dobereiner’s system and developed a table of 55 elements that contained many of the similar relationships later found in the modern periodic table. Then in 1857 ...

Is the periodic table hanging in your lab, classroom, or office woefully out of date ... Lavoisier’s work in framing the principles of modern chemistry led future generations to regard him as a ...

The periodic table that we follow for our studies is the Modern Periodic Table, which is based on atomic number rather than atomic mass. This arrangement was established by the British physicist ...

Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles ... This collection of links explores the history of alchemy, the ...

Today, with 118 elements, the periodic table is a cornerstone of science ... Electricity, the force that powers our modern world, was first discovered around 600 BC when Thales of Miletus observed ...

Sherlock Holmes's forensic detective skills were called into question today as it was revealed this modern sleuth is relying on ancient equipment to solve his latest cases. A still from the recent ...

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 ...

The future is not written in the stars, but in the choices you make: Abu Musa Jabir ibn Hayyan al-Bariqi What if the genesis of modern chemistry—the perio ...