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peridic table
Essay specific features
Written by:
David N
Date added:
March 12, 2014
Level:
University
Grade:
A
No of pages / words:
2 / 339
Was viewed:
7876 times
Rating of current essay:
Essay content:
In the 1700's Lavoisier divided the elements into four classes.
John Dalton suggested that the mass of an atom is the important property.
"The chemical elements are composed of... indivisible particles of
matter, called atoms... atoms of the same element are identical in all
respects, particularly weight...
displayed 300 characters
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indivisible particles of
matter, called atoms... atoms of the same element are identical in all
respects, particularly weight."
n the 1800's Doereiner said that some elements had a relative atomic
mass, and DeChancourtois made a table of elements to show the periodic
reoccurrence of properties. In the 1860's Newland made a table of
elements giving them a serial number in order of their atomic weighs
starting with Hydrogen...
displayed 300 characters
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