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Transcript of Niels Bohr
photo credit Nasa / Goddard Space Flight Center / Reto Stöckli
Bohr's Experiments (Apart from the planetary model)
How Bohr's work affects us today
Bohr determined that electrons were placed in energy levels. This determination is still used today.
The energy levels contain two electrons (at level one), up to eight (at level two), up to ten (at level three ), and up to sixteen (at level four).
The electrons are placed in the energy levels based on their quantum energy.
His model served as a platform of the current model, which is only slightly different from his
"Anyone who is not dizzy after his first acquaintance with quantum of action has not understood a word"
-http://www.biography.com/people/niels-bohr-21010897?page=1 Niels Bohr Biography
Born on October 7th, 1885 in Copenhagen, Denmark
Went to Copenhagen University and received a master’s and doctorate in Physics
In 1912, he married Margrethe Nørlund and proceeded to have six children
In 1922, won the nobel prize for his atomic model
He worked on the Manhattan Project, which focused on creating the first atomic bomb.
In 1954, he created CERN, a physics research facility
Established the Atoms for Peace Conference in 1955, and let won the Atoms for Peace Award for his patronage of atomic energy saftey.
He died on November 18th, 1962 from a stroke; one of his sons went on to be a physicist as well
Published three papers on atomism
Made descriptions of the periodic table
Described the nucleus as a compound structure
What is Atomic Theory?
the theory that all matter is made up of atoms. According to the modern version, the atoms of each element are effectively identical, but differ from those of other elements, and unite to form compounds in fixed proportions.
Studied Rutherford's model, which said that electrons travel in orbit
Created his own model which stated that electrons travel in an orbit, like planets, around a positivley charged nucleus of protons and neutrons
Every level of the orbit has different energy levels
Discovered that electrons can "shift" between energy levels but never in between the orbits
When electrons move to lower energy levels, they emit light
The outer most orbit determnes the element
Uranium isotope fission
Happy 128th Birthday Neils Bohr!