CHEM 1101 Lecture Notes - Lecture 2: Sign Convention, Significant Figures, Scientific Notation

73 views4 pages
18 Jan 2017
Department
Course
Professor

Document Summary

); x = [1. 00531407] x final answer = 1. 0. ^^(doesn"t have to be in scientific notation, can also do 86 900 . These aren"t measured values, so significant figures are not applicable. A counting of something is an example of exact numbers . Ie. the number of steps in a staircase. Ie. there are exactly 2. 54 cm in an inch (predefined) Ie. there are 174 students in this room . There are exactly that many students, and it is 100% precise always. They are treated as if they have an # of significant figures and # of decimal places. ** final answers should either be in standard notation or scientific notation, nothing else. The study of the arrangement of the electrons in an atom using e lectro m agnetic. Note: to model emr as waves or particles is oversimplified but for our purposes in studying the atom, thinking of emr as made up of particles describes it well.