BIOCHM 1090- Final Exam Guide - Comprehensive Notes for the exam ( 67 pages long!)
Document Summary
Chapter 2: atomic theory: assumptions that explain the chemical behavior of matter, all matter is composed of atoms. 1. isotopes: atoms with identical atomic numbers but different mass number: mass number: the total number of protons and neutrons in an atom, atomic weight: the weighted average mass of an element"s atoms. 1. individual masses of the naturally occurring isotopes and the percentage of each must be known. The periodic table: mendeleev organized elements by mass, then into columns based on chemical behavior, groups: vertical columns a) remarkable similarities in their chemical and physical properties, periods: horizontal rows, neighboring elements often behave similar as well. Monday, january 23, 2017: group characteristics, group 1a: alkali metals. 1. react with water to form products that are highly alkaline: because of their high reactivity, alkali metals are not found in nature in the pure state, group 2a: alkaline earth metals.
