The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to Dmitri Mendeleev and Lothar Meyer and the ...

Nearly 150 years after gallium was first discovered and added to the periodic table, scientists at the University of Auckland ...

"This video explores the electronic structure of an atom. Electrons are arranged in energy levels or shells around the nucleus, and each shell can hold a maximum number of electrons. Using the ...

Since the turn of the century, six new chemical elements have been discovered and subsequently added to the periodic table of elements, the very icon of chemistry. These new elements have high atomic ...

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 ...