A new periodic table sizes the boxes for each element based on their relative abundance. Oxygen is plentiful, but indium and helium may soon be scarce, thanks to humans' voracious appetite for ...

Interactive Periodic Table Helium (He), for example, is often used to make party balloons float, but this popular inert gas can also be found in lasers and supercold refrigerants.

For one thing, the modern table has a bunch of elements that Mendeleev overlooked (and failed to leave room for), most notably the noble gases (such as helium, neon, argon). And the table is oriented ...

While I don’t expect my elementary students to be able to memorize the periodic table of elements, I find it necessary for me to have an understanding of how these elements work so I can answer ...

The table is so organized that elements whose chemistry is almost identical are grouped together in blocks of connected by solid arrows (all the inert gases–helium, neon, etc.–fall in the ...

An element of the periodic table, helium is what chemists call an inert gas. It's nontoxic, nonflammable, and is used in several industries because it is the element with the lowest boiling point ...

Every element in the periodic table gives off a certain amount of visible light. It’s this light that makes it easy to tell gold (Au) and silver (Ag) apart.

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 ...