Monday, September 22, 2008

Super Atoms

This superatom of aluminum and hydrogen is surprisingly stable.

Small, But Super -- Science News

These 'atoms' can't leap tall buildings in a single bound, but they have special powers

Gold comes in many colors. Since ancient times, glass artists and alchemists alike have known how to grind the metal into fine particles that would take on hues such as red or mauve. At scales even smaller, clusters of just a few dozen atoms display even more outlandish behavior. Gold and certain other atoms often tend to aggregate in specific numbers and highly symmetrical geometries, and sometimes these clusters can mimic the chemistry of single atoms of a completely different element. They become, as some researchers say, superatoms.

Recently researchers have reported successes in creating new superatoms and deciphering their structures. In certain conditions, even familiar molecules such as buckyballs — the soccer-ball–shaped cages made of 60 carbon atoms — unexpectedly turn into superatoms.

Read more ....

No comments: