NIELS BOHR

BACKGROUND INFO

• Born in Copenhagen October 7, 1885
• Son of Christian Bohr
• Masters degree in Physics
• Doctors degree
• Nobel prize

RUTHERFORD'S EXPERIMENT/PROBLEMS

• Gold Foil Experiment, focused on nucleus
• Miniature, dense nucleus
• Nearly weightless electrons
• Electrons would lose energy
• Collapsing the atom

EXPERIMENTAL DESIGN

• Quantum Constant
• Max Planck, a German Physicist
• Produces measure in length
• Angular moment of electron is quantized

CHANGE OF THE MODEL

• Originally based on planetary model
• Did not make sense
• Unstable
• Electron would lose energy
• Collapse into nucleus

NEW ATOMIC MODEL

• Bohr Model
• Energy of electrons is proportionate
• Limited number of orbits
• Light is absorbed or given off
• Energy is quantized

Untitled Slide

LEGACY

• Bohr's Model
• Written Works
• Manhattan Project
• Bohrium

SOURCES

• http://www.regentsprep.org/regents/physics/phys05/catomodel/bohr.htm
• http://www.nobelprize.org/nobel_prizes/physics/laureates/1922/bohr-bio.html
• http://chemed.chem.purdue.edu/genchem/history/bohr.html
• http://abyss.uoregon.edu/~js/glossary/bohr_atom.html
• http://en.wikipedia.org/wiki/Bohr_model