TOC Atoms and the periodic table

Online Introductory Chemistry

Atoms & the Periodic Table

Dr. Walt Volland revised September 28, 2009 all rights reserved 2005-2009

schematic of a helium-4 Bohr atom model:

2 protons, 2 neutrons and 2 electrons

Formative exercise Formative exercise answers Suggested exercises 1 Atomic Theory 4 Location of Electrons in Atoms 7 Characteristic Properties of Groups of Elements 2 Composition of Atoms 5 Electron Configurations 8 Electron Configurations & the Periodic Table 3 Isotopes and Atomic Weight 6 The Periodic Table 9 Self test 10 Self test answers WebElements is a comprehensive periodic table site created by Mark Winter. Click here to access a periodic table supported by Los Alamos National Laboratory revised by Dr. Walt Volland September 28, 2009 all rights reserved 2005-2009

Formative exercise	Formative exercise answers	Suggested exercises
1 Atomic Theory	4 Location of Electrons in Atoms	7 Characteristic Properties of Groups of Elements
2 Composition of Atoms	5 Electron Configurations	8 Electron Configurations & the Periodic Table
3 Isotopes and Atomic Weight	6 The Periodic Table	9 Self test
		10 Self test answers