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Benjamin Franklin demonstrated that lightning is electricity.
http://chemistry.about.com/cs/history/a/aa020204a.htm
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A.L. Lavoisier discovered nitrogen, described the composition of many organic compounds, and he is sometimes regarded as the father of chemistry.
http://chemistry.about.com/cs/history/a/aa020204a.htm
http://reich-chemistry.wikispaces.com/file/view/lavoisie.gif/31488857/lavoisie.gif -
His model of the atom was that he thought atoms were tiny, indivisible, and they were indistructable particles, that each contained a certin mass, siz,e and chemical differences that was determined by what element they were.
<http://dl.clackamas.edu/ch104-04/dalton's.htm>
http://www.google.com/imgres?q=dalton+model+of+the+atom&hl=en&safe=active&gbv=2&biw=1366&bih=587&tbm=isch&tbnid=UHGvOHdmi0UCaM:&imgrefurl=http://www.cdli.ca/courses/chem2202/unit02_org01_ilo01/a_getready.html&docid=Ry9cPCGJMFg -
Alfred Nobel invented dynamite, smokeless powder, and blasting geletin.
http://chemistry.about.com/cs/history/a/aa020204a.htm
http://worriedlebanese.files.wordpress.com/2009/06/dynamite.jpg -
Dimitri Mendeleev discovered periodicity of the elements. He complied the first periodic table with elements arranged into seven different groups.
http://chemistry.about.com/cs/history/a/aa020204a.htm
http://msnucleus.org/membership/html/jh/physical/periodictable/images/MendeleevPeriodic.gif -
He was credited for the discovery of the electron, isotopes, and the invention of the mass spectrometer
http://en.wikipedia.org/wiki/J._J._Thomson
http://www.chem4kids.com/files/art/atom_isotope1.gif -
He theorized that atoms have their positive charge concentrated in a very small nucleus. He then pioneered the Rutherford model of the atom, through his discoveries.
http://en.wikipedia.org/wiki/Ernest_Rutherford
http://www.google.com/imgres?q=rutherford+model+of+the+atom&hl=en&safe=active&gbv=2&biw=1366&bih=587&tbm=isch&tbnid=lPxUfVeeJhuwBM:&imgrefurl=http://www.iun.edu/~cpanhd/C101webnotes/modern-atomic-theory/rutherford-model.html&docid=AeH0LqmkCaxUxM&imgurl=http://www.iun.edu/~cpanhd/C101 -
Sir Alexander Flemming discovered the antibiotic penicillin.
http://chemistry.about.com/cs/history/a/aa020204a.htm
http://www.ygoy.com/wp-content/uploads/2011/04/Antibiotic-resistance.jpeg -
The Bohr model is a primitive model of te hydrogen atom. As a theory, it can be derived as a first-order approximation of he hydrogen atom. http://en.wikipedia.org/wiki/Bohr_model http://www.google.com/imgres?q=bohr+model+of+the+atom&hl=en&safe=active&gbv=2&biw=1366&bih=587&tbm=isch&tbnid=i22vpKmORXLJNM:&imgrefurl=http://chemwiki.ucdavis.edu/Wikitexts/UCD_Chem_2A/ChemWiki_Module_Topics/Electrons_in_Atoms/Atomic_Spectra&docid=rn1ZMLqOnGbQpM&imgurl=http://chemwiki.ucdavis.edu/%2540api/deki/fi
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