CHM 109 Lecture Notes - Lecture 3: Carbon-12, Unified Atomic Mass Unit
Document Summary
Ch 5 the nuclear model of the atom for fall 2014 and f2015 and f2016. C & p 6th edition : 1, 21,23, 25,29, 31, 43, 49, 52. C&p 4th ed and 5th : practice questions from the end of the chapter, pp 140+ : 1, 1 elements are composed of tiny individual particles called atoms(still true) 2 all atoms of an element are identical in every way (now proved false- they. 3 atoms cannot be created or destroyed (can changed/be destroyed; atoms can only have to have the same number of protons) be created with massive heat and pressure) Law of multiple proportions have different masses (false; mass does not determine the element) 4 atoms of one element have the same mass and atoms of other elements. 5 atoms of one element may combine with atoms of other elements in ratios of small whole numbers to form compounds (still true)
