Friday, February 27, 2009

identify the following

3 main types of subatomic particles electrons,protons,neutrons
-the change&location of electrons is from one object 2 another object!
-the change&location of a proton is a nucleus of an atom and has a charge!
-the change&location of a neutrons is nucleus!

Friday, February 20, 2009

chemistry

organic chemistry,inorganic,physical chemistry,biochemistry,Analytical chemistry,Theoretical chemical,Materials chemistry, Nuclear chemistry.
Chemistry-Science dealing with the composition and properties of substance!