CHEM 110 Lecture Notes - Boron, Paramagnetism, Pseudoscience

• School: McGill University
• Department: Chemistry
• Course: CHEM 110
• Professor: Ariel Fenster

Document Summary

Chapter 10 chemical bonding: electrons (especially valence electrons) play a fundamental role in chemical bonding, electrons are transferred from one atom to another. Binary ionic compounds: consist of monatomic cations and monatomic anions. Ternary ionic compounds: consist of monatomic and polyatomic ions. Bonding between atoms within the polyatomic ions are covalent. Rules for writing lewis structures: hydrogen atoms are always terminal atoms, central atoms are generally those with the lowest en, carbon atoms are always central atoms, molecules and polyatomic ions generally have compact, symmetrical structures. Ionic: transfer of electrons from one atom to another. Positive charge is smaller than the negative charge. Bond pair: a pair of electrons in a covalent bond. Lone pair: electron pairs that are not involved in bonding. Coordinate covalent bond: a single atom contributes both of the electrons to a shaied pair. Multiple covalent bonds: double and triple covalent bonds. Triple bonds are very strong and difficult to break.