In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue explores how the periodic table of elements took shape. Learn how the periodic table developed ...

GALLIUM IS an unusual element. It is a light, silvery metal, similar to aluminium. But unlike aluminium, if you hit it with a hammer it shatters like glass. It melts at about 30°C—in your hand, or ...

Dmitri Mendeleev is known as the father of the periodic table, but his interests were wide-ranging and sometimes eccentric. We take a look at his varied and often tumultuous life. Dmitri Mendeleev’s ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On Feb. 17, 1869, Russian chemist Dmitri Mendeleev published his first attempt to sort the ...

Who made the first periodic table? Other scientists had previously identified periodicity of elements, but on March 6, 1869 Dmitri Mendeleev (photo) presented the first periodic table. Mendeleev was a ...

Your science teacher may pull out a colorful chart when talking about elements, the simplest substances that make up the universe. That chart, called the periodic ...

The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a ...