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.
Ovarian cancer is often called the silent killer because many times there are no symptoms until the disease has progressed to an advanced stage. One-third of American women will get some form of cancer in their lifetime and approximately 1.4 percent of those cases will be cancer involving one or both ovaries.