AP Chemistry 2.1 Practice problems - Types of Chemical Reactions

Explain the relationship between the type of bonding and the properties of the elements participating in the bond. Electronegativity values for the representative elements increase going from left to right across a period and decrease going a group. These trends can be understood qualitatively through the electronic structure of the atoms, the shell model, and Coulomb's law. Valence electrons shared between atoms of similar electronegativity constitute a nonpolar covalent bond. For example, bonds between carbon and hydrogen are effectively nonpolar even though carbon is slightly more electronegative than hydrogen. Valence electrons shared between atoms of unequal electronegativity constitute a polar covalent bond. The atom with a higher electronegativity will develop a partial negative charge relative to the other atom in the bond. In single bonds, greater differences in electronegativity lead to greater bond dipoles. All polar bonds have some ionic character, and the difference between ionic and covalent bonding is not distinct but rather a continuum. Find questions packet here - https://drive.google.com/file/d/1dkjP...