But radioactive atoms have unstable nuclei, meaning they can move around the chart. For example, uranium (element 92) gradually decays into a whole series of lighter elements, ending with lead ...

the modern periodic table, first successfully mapped out by Russian academic Dimitri Mendeleyev in 1869, occupies a coveted space in science-lovers' psyches. This traditional chart – with its ...

Discover the history, structure, and importance of the periodic table of elements, from Mendeleev’s discovery to modern scientific applications. When you purchase through links on our site ...

The periodic table stares down from the walls of just about every chemistry lab. The credit for its creation generally goes to Dimitri Mendeleev, a Russian chemist who in 1869 wrote out the known ...

The iconic chart of elements has served chemistry well ... heard about a game called Periodic Table Battleship, he couldn’t help but imagine a player’s perspective of the opponent’s inverted ...

A classroom chart bearing an early version of the periodic table of elements has been discovered in a University of St. Andrews chemistry lab. Dating back to the 1880s, the chart is thought to be ...

It includes observations and conclusions that students are meant to make on their own. Students will begin to look closely at the periodic table. They will be introduced to the basic information given ...

Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz. The ...

The periodic table has become an icon of science ... Julian calendar used in Russia at that time), Mendeleev published a chart of the 60-odd elements known at the time, sorted by their weights ...

MIT researchers found that different algorithms can all be grouped into a ‘periodic table’ of AI. The idea for the table was an accident that emerged from identifying similarities between two ...