Covalent bonding is a common type of bonding, in which two or more atoms share up to three valence electrons. In nonpolar covalent bonds, the electronegativity difference between the bonded atoms is small, typically 0 to 0.3. Bonds within most organic compounds are described as covalent.
The Silent Generation refers to people who were born between 1925 and 1945. There are several theories as to where the label 'Silent Generation' originated. The children who grew up during this time worked very hard and kept quiet. It was commonly understood that children should be seen and not heard.
The Silentium were an extra-galactic droid society, native to the same galaxy as the Yuuzhan Vong. A species of star-shaped organics created the droids to resemble their form, in much the same way that humanoid sentients created bipedal droids. After the organics were wiped out by a radiation storm from a nearby supernova, their droid creations lived on. A young Silentium.