Yellow ball=hydrogen atom
Wood stick=covalent bond
This photograph shows Hydrogen molecule with its formula, H2. H2 molecule contains 2 hydrogen atoms and they are covalent bonded which means they equally share electrons each other. Hydrogen molecule has a linear structure with a 180 degree bond angle. Furthermore, hydrogen atoms are arranged at 180 degree from each other in order to maximize their separation. In addition, hydrogen molecule follows a duet rule and thus, the bond between 2 hydrogen atoms is in a single bond so that each atom can fill up its highest principal energy level to 2.
