Transcript Hantaro Nagaoka

HANTARO NAGAOKA:
A JAPANESE PHYSICIST
1904
By: Makayla Jones
BORN: AUGUST 15, 1865 IN NAGASAKI,
JAPAN
DIED: DECEMBER 11, 1950 IN TOKYO,
JAPAN
SATURNIAN ATOMIC MODEL
Created
the Saturnian Atomic
Model which was the idea that in
the nucleus there were protons
and surrounded by the nucleus
were electrons.
Author: James Trefil, Atom, Encyclopedia
Brittanica
http://www.britannica.com/EBchecked/t
opic/41549/atom/48356/Discovery-ofradioactivity Date: September 4, 2014
PRESENTED HIS WORK
He
presented his work at the Tokyo
society for mathematics and
physics in 1903.
He also announced it in the British
academia journal “Philosophical
Magazine.”
Author: Unknown. Hantaro Nagaoka.
http://http://www.japanesegreatest.com/technology/atomic-model.html
February 27, 2008
WHY HE STARTED
He
sparked an interest in atomic
physics after he heard Marie Curie
give a lecture on radioactivity in
1900.
"Nagaoka, Hantaro." Complete Dictionary of
Scientific Biography. 2008. Retrieved December 03, 2014
from Encyclopedia.com:
http://www.encyclopedia.com/doc/1G2-2830903102.html
ELECTRONS OUTSIDE AN ATOM
Nagaoka
was one of the first to propose
the idea that negatively-charged
electrons are located on the outside of
the atom.
Also
one of the first to propose protons in
the nucleus.
Author: Vincent Luu, Discovering the Atom,
http://discoveringtheatomvincent.weebly.co
m/hantaro-nagaoka.html Date: December
3, 2014.
RENOUNCING HIS MODEL
He
abandoned the Saturnian Model in
1908 after there wasn't enough
experimental proof to support the model
and disprove speculation.
Author: Klaus Hentschel, Atomic models,
Nagaoka’s Saturnian Model,
link.springer.com/chapter/10.1007%2F9783-540-70626-7_10 , Date: 2009