1. Covalent Bonding NOTES
A Covalent Bond is the bond between _______ or ____________ _________________________________ that involves the _____________________ of electrons between the two elements.
The little ______________ between elements in a covalent molecule means they are _________________ ______electrons, which is one _____________ pair. Two _____________ is called a ____________ bond, __________ shared electrons or ___ shared pairs, and three ___________ is a ____________ bond which is sharing _____________ electrons or ______ pairs.
_______________________________________Bond – electrons are _________________shared; One element “pulls” more on the electrons than the other. An example is the ____________ molecule where ____________ “hogs” all of the electrons so the _______________ end of the molecule is ______________ charged, and between the “ears” of the ________________ end of the molecule there is a ______________ charge. This is why ______________ is such an important molecule in nature.
_______________________________________Bond – electrons are __________________shared; each element “pulls” evenly on the electrons. An example is the diatomic gas _________________.
An ________________________Force (stronger) holds elements together to make compounds. An example of this type of force is ______________________________ which holds _______________ together within a ____________________.
An _________________________ Force (weaker) holds molecules together to form solids, liquids, and gases. An example of this type of force is a ________________________ bond which holds molecules together, but is ______________ broken.
The covalent molecule prefixes determine the name and chemical formula for each covalent molecule. Each number from 1 – 10 has a prefix. Here are some examples of the molecules, names, and formulas for some common covalent molecules.
CO2 Nitrogen & Fluorine Oxygen Gas Methane

2. Covalent Bonding Questions
What is a Covalent Bond? What types of elements form a Covalent Bond? Which substance(s) contains bonds that involve the sharing of electrons? How do you know? CO2 KBr NH3 Cl2 What is meant by the polarity of molecules? What are the two types of polarity and how can you distinguish between them? Give examples of each type and explain them. What are the two types of forces associated with covalent molecules? Distinguish between them using examples. Write the chemical name and formula for each of these molecules: Water, Carbon Dioxide, and Nitrogen & Bromide.