7th+Period+Science

= John Dalton :) =
 * Table 1**


 * Nationality: Greek
 * Name of model:John Chadwick model
 * Year of discovery: 1808
 * Description of discovery: John Dalton discovered all elements were composed of tiny particles called atoms.



= media type="custom" key="10325550" = = Niels Bohr :) = Sources:  wikipedia.com  gogster.com  allperiodictables.com  answers.com
 * Nationality: Danish
 * Name of model: Bohr Model
 * Year of discovery: 1913
 * Description: Bohr evolvedRutherford’s theory into a more detailed one. He discovered each ‘shell’ around the nucleus could hold a certain amount of electrons

= Democritus = Nationality: Greek Name of Model: No name. Year of Discovery: 6th century. Description:Democritus' theory was that no matter how much you broke something up it still has matter, even if we cannot see it.

media type="custom" key="10315485"

Table 3 = Edward Frankland(: =

absoluteastronomy.com bing.com
 * nationality: Landcaster, England
 * name of model: valence electrons
 * approximate year of discovery: 1868
 * Description: In, 1868 they noticed, in the solar spectrum, a bright yellow line.
 * [[image:http://2.bp.blogspot.com/-dfxhEfHXsY0/Tb-LvGQmxQI/AAAAAAAAAEE/41ePW8CJQMs/s1600/valence-electron-of-atom.jpg]]valence electron model

= James Chadwick s = Table 4 James Chadwick was born in October20th, 1891 and died July24, 1974.

Table 5 **__ J.J. Thomson __**


 * Nationality: Cheetham Hill, Manchester, England
 * Name of Model: The Plum Pudding Model
 * Year of discovery: He discovered the model in 1904
 * Description: He created the Plum Pudding Model, and it helped people figure out what the electron is.



Erwin Schrodinger



Nationality: Australian

Name of Model: The Atomic Model

Approximate Year of Discovery: 1910

Short Description of Discovery: In 1910 Erwin created The Atomic Model and was discovered the year after. In 1919 he received the Nobel Prize in physics.

Diagram of the Atom Model:



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