Amid political and economic turmoil, Qatar has closed its two helium production plants, Reuters reports. Qatar is the world’s second-biggest producer of helium, the gaseous element that sits at the ...

A new periodic table developed by online educators allows users to become more familiar with different elements by showing them how each one can be used in practical applications. Keith Enevoldsen ...

Noble gases—helium, neon, argon, krypton, xenon, and radon—have long been believed to be the least reactive elements on the periodic table. Helium’s composition in particular, with its full outer ...

But the periodic table didn’t actually start with Mendeleev. Many had tinkered with arranging the elements. Decades before, chemist John Dalton tried to create a table as well as some rather ...

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Can you remember all 118 elements in the periodic table without looking at the answers?

I entered the Yale Medical Historical Library with the smell of tert-butyl methyl ether still lingering, phantom-like, from the organic chemistry lab I had just left. Tucked away in my lab notebook ...

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 ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. There's a natural resource found beneath Earth's surface that's been ...