Carbon a streak on paper (hence its name, from the Greek verb "γράφειν" which means "to write"), while diamond is the hardest naturally occurring material known. Graphite is a good electrical conductor while diamond has a low electrical conductivity. Under normal conditions, diamond, carbon nanotubes, and graphene have the highest thermal conductivities of all known materials. All carbon allotropes are solids under normal conditions, with graphite being the most thermodynamically stable form at standard temperature and pressure. They are chemically resistant and require high temperature to react even with oxygen. The most common oxidation state of carbon in inorganic compounds is
Children of the Atom Children of the Atom Children of the Atom is a 1953 science fiction novel by American writer Wilmar H. Shiras, which has been listed as one of "The Most Significant SF & Fantasy Books of the Last 50 Years, 1953-2002." The book is a collection and expansion of three earlier stories, the most famous of which is the novella "In Hiding" from 1948, which appeared on several "Best SF" lists. The book's plot focuses on superhuman children with immeasurably high intelligence who have to hide their youth, and work from hiding in order to get along in the less-intelligent world.