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.
Dark brown discharge is a symptom of âold bloodâ and/or old uterine lining which did not left the uterus at right time (during regular menstrual period). Often the dark brown discharge is just remains of delayed period â most often associated with old endometrial tissues (remains of last period).ark brown discharge instead of period could be early signal of pregnancy â so called âimplantation bleedingâ. After the fertilization occurs the fertilized egg or zygote travels down the fallopian tube to the uterus â during this journey the cell division takes place and the zygote develops into an embryo.