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The Atomic Theory
Start of Term Paper
In this report I will give a history on the development of . I will
cover some of the most important dates in the development of atomic theory.
An atom was first thought of by the Ancient Greeks who believed that
matter was made of smaller pa .... Middle of Term Paper
... that elements show a regular pattern when they are
arranged according to their atomic masses). Mendeleyev wrote a two-volume book called Principles of chemistry
(1868-1870), which later became a classic. These books included an improved version of the periodic table.
Sir Joseph Thomson, another important person in the development of the atomic theory, was born in
1906. Thomson won the Nobel Prize in physics (1906) for his work in the conduction of electricty through gases.
He discovered the electron by using cathode rays. An electron is the smallest particle of an atom, the charge on
an electron is negative.
Ernest Rutherf ... |
| Number of Words: 423 |
Approximate Pages: 2 |
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