Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard ...

The periodic table of the elements isn't as confusing as it looks. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists had a ...

The periodic table, also called the periodic table of elements, ... This distinguishes them from the main group elements that primarily fill s- and p-orbitals. Let's try an example: ...

Explore the periodic table, and build atoms and molecules in this web edition of the NOVA Elements iPad App. It's Elemental In this interactive periodic table, explore the elements and their ...

The elements that make up each column of the periodic table share a set of common traits. Here, a chemist describes group 15 and the crucial role they play in life. U.S.

Think of bismuth as the Cinderella of the periodic table. Because it is surrounded by its toxic stepsiblings—the elements lead, tin, antimony, tellurium, and polonium—chemists often overlook ...

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 ...

The chemistry of heavier main-group elements such as aluminium, silicon and phosphorus is very different from that of the lighter ones such as boron, carbon and nitrogen, yet discussions of this ...

The elements' temporary names stem from their spot on the periodic table — for instance, ununseptium has 117 protons. Each of the discovering teams have now been asked to submit names for the ...