CHY 103 Lecture Notes - Lecture 3: Molecular Mass, Pearson Education, Nonmetal

• School: Ryerson University
• Department: Chemistry
• Course: CHY 103
• Professor: Noel George

Document Summary

Things not covered but you really need to know: Chemical formulas and molecular models including table 3. 3 (polyatomic anions). Empirical formulas: give the relative numbers and types of atoms in a molecule. Definition: a compound consisting of cations (positive charge) and anions (negative charge), associated to give an overall neutral (zero charge) species. Generally, a combination of metal and non-metal species. An ion is formed when a neutral atom gains or loses one or more electrons. A neutral atom that gains one or more electrons forms an _____________________ A neutral atom that loses one or more electrons forms an _____________________ The bulk of chemicals available today exist in the form of ___________________, i. e. , substances consisting of two or more kinds of atoms to form a ________________ that has properties different than its components. Formula mass and the mole concept for compounds. Earlier we learned about the relationship between mass, moles, and number of atoms.