Undergraduate Rates-Tuition & Fees. All students are under the current tuition rate which is set for the Fall, Spring and Summer semesters and is subject to annual increases. 1  Undergraduate - On Campus or Partially Online.  Undergraduate - Fully Online.
Definition: A single bond is a chemical link between two atoms in which electrons are shared between them. Examples: There is a single bond between the oxygen and each hydrogen in a water molecule (H 2 O). Each of the covalent bonds contains two electrons-one from a hydrogen atom and one from the oxygen atom.
A covalent bond is a strong bond between two non-metal atoms. It consists of a shared pair of electrons. A covalent bond can be represented by a straight line or dot-and-cross diagram. Hydrogen and chlorine can each form one covalent bond, oxygen two bonds, nitrogen three, while carbon can form four bonds.