With atoms being so well characterized, it is possible to use them as probes — to look for tiny changes in their properties stemming from interactions with other atoms or the environment. (science.sciencemag.org)
It contains a carbon atom that bonds to six other atoms instead of the four we have been told carbon is limited to. (newscientist.com)
When other atoms are substituted for a few of the aluminum ones, bright hues emerge. (discovermagazine.com)