Chemistry help

how did scientist discover the atom??
i tried searching the web but no answers

 

As in the history of the atom? Like from Democritus to Bohr? If that's the case... http://tinyurl.com/b4osyx

 

You can find a lot of information on Wikipedia:
http://en.wikipedia.org/wiki/Atom

 

With the wikipedia information, it's depends on your education level. College professors usually don't want students to use wikipedia since anyone can alter the date (me included). High school, nah people don't care for @#$%!

 

It started from Democritus, saying all atoms are "idential" and "indivisible",
which is later built on by John Dalton ---> J.J Thomson ---> Millikan's Oil Drop Experiment ---> Rutherford, for simple Chemistry.
If you want more in dept analysis, using wiki is a good source.