VRML is an acronym for virtual reality modeling language that allows a person to make 3D worlds that you can navigate around in and get a better fell for the angles at which the angels the atoms connect, and where the bonds are placed. If you don't have a VRML plugin, you can download Cosmo viewer for free. Black Carbon, an atom located in group 14. The atomic number of carbon is 6, and is number two in the periodic table.
Carbon occurs naturally in and is in all things from stars, to plants and animals.
Carbon can have varying degrees of hardness, from graphite, which is soft, to the hardest substance on earth, diamond. White Hydrogen is an atom located group 1, with an atomic number of 1 and is the first atom in the periodic table. Hydrogen is also the lightest gas that humans know about, and is also the most abundant element in the universe. Hydrogen was used in lighter than air balloons, mainly the Hindenburg. After that incident, hydrogen was not used in hot air balloons.