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What experimental method has allowed scientists to estimate atomic and ionic radi?
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What scientists used atomic spectra to develop a model of the atom?
Niels Bohr.
Who are the early scientists who made contributions in the development of the atomic theory?
dalton, rutherford ,etc
How did scientists feel for creating atomic bomb?
depends on the scientist. some happy, some sad.
What did Rutherford's gold foil expieriment tell scientists about atomic structure?
That atoms have a positively charged nucleus.
The modern atomic model is based on the principles of what?
# many scientists over a long period of time
When would scientists need to change a theory?
Scientists had made observations that did not fit exactly with Dalton's theory. Scientists changed the atomic theory to include this new knowledge. While the modern atomic theory is based on Dalton's theory, it is also very different.
When was Bulletin of the Atomic Scientists created?
Bulletin of the Atomic Scientists was created in 1945.
When was British Atomic Scientists Association created?
British Atomic Scientists Association was created in 1946.
Which kind of scientists create atomic bombs?
Physicists and nuclear scientists create atomic bombs.
What symbol do scientists use to represent atomic mass unit?
the symbol scientists use to represent the atomic mass number is the letter U.
Why did scientists develop atomic symbols?
Who revived the atomic theory and put on a solid experimental foundation in about 1803 by?
Dalton
What is the experimental design john Dalton used in atomic theory?
revived the atomic theory and stated the law of Partial Pressures of gases
What jobs were open after they dropped the atomic bomb?
Atomic bomb development jobs for the scientists and engineers.
How did Dalton advance the atomic philosophy propose by democritus?
By using experimental methods Dalton transformed Democritus ideas on atoms into a scientific theory.
How many nuclear weapons are in existence?
~17,300 as of 2014, according to the Ploughshares Fund and the Bulletin of the Atomic Scientists (including both active stockpile and retired but not yet dismantled).For the current estimate and a downloadable copy of the Bulletin of the Atomic Scientists report (PDF) on historical active stockpile sizes use the Ploughshares Fund: World Nuclear Stockpile Report link.
Bohr found experimental evidence for his atomic model by studying?
The electron cloud
