Ionic compounds are between metals and non-metals. Molecular (covalent) compounds are between only non-metals. (Metallic compounds are between metals and other metals) An io â¦ nic compound is a pure substance that is formed from a metal and a nonmetal.here are two important types of covalent bonds: non-polar and polar bonds. Non-polar covalent bonds are incredibly rare, and only formed when there is a minute difference in the electronegativity of two atoms. Most commonly, they form between two atoms of the same type, which have no difference in electronegativity.
There are certain vaginal infections that may lead to a light brown vaginal discharge. Such infections include gonorrhea, warts and Chlamydia. If the light brown appearance of the discharge is a result of an infection, it may be accompanied by other symptoms like foul smell, a burning or itchy sensation and pain.
1 Atrophic Vaginitis. 2  Atrophic vaginitis can cause a brown discharge, bleeding, pain or itching in the vaginal area. 3  A woman may also experience painful intercourse, burning sensation, dryness; the discharge may be yellow in color and have a foul smell. 4  Uterine Polyps. 5  Uterine polyps are also called endometrial polyps.