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Tjis essay explains the evolution of the atomic theory and how it has changed over the last cenutry or so.
Title: Tjis essay explains the evolution of the atomic theory and how it has changed over the last cenutry or so.
Category: Science & Technology
Details: Words: 545 | Pages: 2.3 (approximately 235 words/page)
Tjis essay explains the evolution of the atomic theory and how it has changed over the last cenutry or so.
The atomic theory has changed much since John Dalton's time. In the
late seventeen hundreds John Dalton first discovered that elements combine
in specific proportions because they are made of individual atoms. For
example, hydrogen and chlorine always combine in a specific proportion to
create hydrochloric acid. Dalton thought that atoms were small particles,
like a small marble. Dalton's atomic theory consisted of three parts. They
were:
*All substances are made of atoms. Atoms are …showed first 75 words of 545 total…
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…showed last 75 words of 545 total…seemed
too simple to scientists though.
Scientists now think that the definite path of an atom cannot be
predicted. They travel around in a predicted region because they do not
move around in straight paths. These regions where they are likely to be
found are called electron clouds. These clouds are like the paths of Bohr's
model.
Scientists still aren't sure about the definite structure of atoms , but they think that they
are very close
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