All the elements beyond iron on the periodic chart are formed in supernova.

"A modern periodic chart of chemical elements", Science, 111, 661-663 (1950).

Visiting it is a bit like waking up and finding a new element on the periodic chart.

Now that Disney's bought the periodic chart, there's going to be a lot of heat on all of the other players to get in the game.

Its electrons shift up and down on the periodic chart and you get oxygen and hydrogen.

Replies: Hydrogen is not a metallic element despite the placement on the left side of the periodic chart.

A periodic chart of alien elements scrolled through the feed.

But between the periodic chart and the industrial profit sheet, nature can shift shapes in surprising ways.

Liz nodded, her thoughts still on a world where the periodic chart no longer applied.

The world ruled by the periodic chart?