The goal of this packet is to move beyond an introductory understanding of ionic and covalent bonding. After studying this packet students should be able to predict bond type using periodic trends and electronegativity data.
This packet contains a video about ionic and covalent bonding. A periodic table with electronegativities is included along with text summarizing how to predict bond type using either periodic trends or electronegativity data.
Group 1 and 2 elements (except for hydrogen) tend to form ionic bonds with nonmetals
Nonmetals tend to form covalent bonds with each other and Hydrogen
Oxygen, Nitrogen, and Fluorine tend to form polar covalent bonds
Carbon and Hydrogen form nonpolar covalent bonds with each other
1) Look up the electronegativity of the two atoms involved in the bond
2) Find the difference between their electronegativities
3) The greater the difference is, the more ionic the bond will be
Difference < 0.5 = nonpolar covalent
0.4 < Difference < 1.7 = polar covalent
Difference > 1.7 = ionic