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 ...

It took centuries to grasp the idea of chemical elements as being the bricks of the universe and that out of these building stones all matter is composed. Number of Elements.—From many facts it ...

Astronomers have used near-infrared light to explore the extreme forces behind the eruption of LMC68, a recurrent nova in the ...

These elements, which are the constituents of immense ... unless they are restrained by chemical combination. They then collect around the great centers of attraction constituted by the stars ...

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More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the ...

The transplutonium actinides are highly radioactive and rare, making them difficult to study. To examine their chemical ...

All elements of the Assad regime’s chemical weapons program must now be secured, declared, and safely destroyed under ...

Scientists at Oak Ridge National Laboratory have developed a method that can track chemical changes in molten salt in real ...

Scientists have discovered “berkelocene,” the first organometallic molecule to be characterized containing the heavy element ...