In a compound, elements are chemically bonded together, which makes it very difficult to separate them. Compounds are not found on the periodic table. For example, water isn’t on the periodic ...

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 ...

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

That’s why this periodic table clock really caught our eye. [gocivici]’s idea is a simple one: light up three different elements with three different colors for hours, minutes, and seconds ...

Periodic Table as Arranged by Mendelejeff attention ... Law the exact determination of the atomic weight of an element, whose compounds are all nonvolatile, becomes a matter of extreme difficulty.

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can ...

Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have made a groundbreaking ...

Scientists have discovered 'berkelocene,' the first organometallic molecule to be characterized containing the heavy element berkelium. The breakthrough disrupts long-held theories about the chemistry ...

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract ... stability of chemical compounds. It is expected to correlate with ...

Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.