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Copy of John Dalton Presentation

Life of John Dalton

Neal Bhak

on 19 September 2013

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Transcript of Copy of John Dalton Presentation

John Dalton
He was born into Quaker family at Eagles field, England in 1766
Ja Young
What atomic model was John Dalton responsible for “creating”?
What experiment was used to advance our understanding of atom?
How did the new model of the atom improve on the previous model?
Early Life
1. All elements is consists with little particle called atoms
2. All atoms cannot be destroyed, nor be created. It can only rearrange during the chemical reaction.
3. All atoms of a given element are identical in mass and properties
4. The atoms of a given element are different from other element
5. Compounds are formed by a combination of two or more different kinds of atoms
When he was 15, he joins his brother, Jonathan, in running a Quaker school in Kendal
When he was 23, he started to take class about laws and medicine but most of his relative disagree.
When he was 26, he became a secretary of the Manchester Library and Philosophical Society.
(Sep 6th 1766-July 26th 1844)
English chemist, meteorologist and physicist
Dalton’s model was that atoms are tiny so it’s indivisible and it’s indestructible particles which have certain mass and property.
Dalton came up with his atomic theory.
This is five main points that he sets up:
Dalton created a to use them to order the atoms by weight of the elements. The weights of the elements are comparing to hydrogen, which is the lightest and has the atomic number of 1. He used the patterns as the circles to distinguish the different elements. The circles soon became the symbol of those invisible atoms therefore he could experiment with their combining properties.
"Table of Atomic Weights"
Dalton used a gas called nitric oxide (NO) and oxygen (O) to experiment about the ratio of the atoms.
He tried to rearrange them together to produce a third type of gas. As a result it determined the proportions or ratios of the two reacting gases. He carried on his experiment like this and completed the table of atomic weights.
John Dalton is well known as pioneer who worked on the development of modern atomic theory.
Dalton’s atomic theory gave many impacts to modern chemistry. His theory became a basic principle of chemistry.
Antoine Lavoisier was the French chemist who was the first to establish definition of an element. However, he had no concept of atoms but he determined that elements are substances that cannot be broken into simpler substances by any chemical reaction.
Dalton’s postulates seemed very impressive because even though there weren’t enough scientific resources at the time, he originally observed the reaction from the evaporated water which existed as an independent gas.
Antoine Lavoisier
Alciatore, By David. "What Led to John Daltons Atomic Theory? - by Minute Major - Helium." Helium - Where Knowledge Rules. Web. 10 Oct. 2010. <http://www.helium.com/items/1862285-daltons-atomic-theory-of-matter>.
Alciatore, By David. "How John Dalton Came up with the Atomic Theory of Matter - by Hoc Trinh - Helium." Helium - Where Knowledge Rules. Web. 10 Oct. 2010. <http://www.helium.com/items/214326-how-john-dalton-came-up-with-the-atomic-theory-of-matter>.
"John Dalton." Wikipedia, the Free Encyclopedia. Web. 10 Oct. 2010. <http://en.wikipedia.org/wiki/John_Dalton>.
Atoms and Elements | Parts and Properties of an Atom | Compounds | Important Chemical Elements. Photograph. Articles in Easy, Understandable English for ESL Learners. Web. 10 Oct. 2010. <http://www.english-online.at/science/atoms-and-elements/atoms-and-important-chemical-elements.htm>.
Reich-chemistry - ~~Antoine Lavoisier~~. Photograph. Reich-chemistry - Home. Web. 10 Oct. 2010. <https://reich-chemistry.wikispaces.com/~~Antoine Lavoisier~~>.
Http://en.citizendium.org/images/0/0b/JOHN_DALTON_REICH-CHEMMISTRY.jpg." Google. Web. 10 Oct. 2010. <http://www.google.com/imgres?imgurl=http://en.citizendium.org/images/0/0b/JOHN_DALTON_REICH-CHEMMISTRY.jpg&imgrefurl=http://en.citizendium.org/wiki/John_Dalton&usg=__3FwSELjE9tKq03J9xKpqgwPnEUM=&h=300&w=300&sz=13&hl=ko&start=3&zoom=1&um=1&itbs=1&tbnid=EMUJZGzHxbax0M:&tbnh=116&tbnw=116&prev=/images?q=john+dalton&um=1&hl=ko&ndsp=20&tbs=isch:1>.
Http://en.citizendium.org/images/0/0b/JOHN_DALTON_REICH-CHEMMISTRY.jpg." Google. Web. 10 Oct. 2010. <http://www.google.com/imgres?imgurl=http://en.citizendium.org/images/0/0b/JOHN_DALTON_REICH-CHEMMISTRY.jpg&imgrefurl=http://en.citizendium.org/wiki/John_Dalton&usg=__3FwSELjE9tKq03J9xKpqgwPnEUM=&h=300&w=300&sz=13&hl=ko&start=3&zoom=1&um=1&itbs=1&tbnid=EMUJZGzHxbax0M:&tbnh=116&tbnw=116&prev=/images?q=john+dalton&um=1&hl=ko&ndsp=20&tbs=isch:1>.
Thank You
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