Americium, curium and californium—crystallizing the rarest elements

Actinides are a group of heavy, radioactive elements that include uranium, plutonium, americium, curium, berkelium and ...
BBC

Elements, compounds and mixtures

Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...
Nature

The Chemical Elements and their Compounds: an Introduction to the Study of Inorganic Chemistry from Modern Stand points

THE merits of a book on atomic and molecular structure can be judged by a very simple test. If the book merely gives an account of the personal views and impressions of the author, in the form of a ...
Science Friday

Model Chemical Elements And Molecules With Bricks

You may have noticed that the rock formations are very different colors. The rock formations on the left are from Red Rock State Park in Texas, and on the right is El Capitan Mountain in Yosemite ...
The New York Times

ELEMENTS AND COMPOUNDS.

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...