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All Mixed Up - Oxygen

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by

Amy Nguyen

on 9 March 2016

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Transcript of All Mixed Up - Oxygen

All Mixed Up - Oxygen
1897
1911
1932
1913
1800

John Dalton (1766 - 1844)
In 1808, he introduced his research in the form of a model, which he named "Dalton's Atomic Model".
Within his model, he created five laws, which were:
1. All matter is made up of atoms that are unbreakable.
2. All atoms of an element are identical.
3. Atoms of different elements have different
weights and different chemical properties.
4. Atoms that combine to form different
elements are called compounds.
5. Atoms cannot be created nor destroyed.
JJ Thomson (1856 - 1940)
In 1897, he discovered the electron.
In 1904, he developed his own atom
model known as the "Thomson
Atomic Model."
Ernest Rutherford (1871 - 1937)
Known as the "Father of the Nuclear Age".
In 1911, he discovered that atoms were made up of a charged nucleus orbited by electrons.
He created his own model known as the "Rutherford Model of the Atom."
He successfully split an atom, leading to his discovery of protons.
Niels Bohr (1885 - 1962)
In 1913, he proved that electrons travel in separate orbits around the nucleus.
Bohr discovered that the number
of electrons circling the outer
orbit determines the properties
of a certain element.
In 1932, Chadwick discovered the neutron.
He discovered the neutron by blasting alpha particles into a beryllium
atom.
TIMELINE OF THE ATOM STRUCTURE:
James Chadwick (1891 - 1974)
Bibliography
By : Amy NGUYEN
https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/atoms-molecules-and-ions-2/history-of-atomic-structure-32/john-dalton-and-atomic-theory-197-6138/
http://www.elementalmatter.info/oxygen-properties.htm
http://chemed.chem.purdue.edu/genchem/history/dalton.html
http://atomictimeline.net/index.php
http://www.livescience.com/32016-niels-bohr-atomic-theory.html
http://www.biography.com/people/ernest-rutherford-39099
http://www.chemheritage.org/discover/online-resources/chemistry-in-history/themes/atomic-and-nuclear-structure/thomson.aspx
http://www.famousscientists.org/james-chadwick/
Book: 30-Second Elements by Eric Scerri
THANK YOU!
Full transcript