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Some elements Scientist
law of octaves, Mistakes
Newlands every eighth assumed all
not similar at all
and put two
ridiculed his
ideas and they
element seemed elements had
1864 similar. been discovered
elements in the
same place
were not
accepted
`father of the
Arranged them
Left gaps for modern periodic
in a periodic
Mendelee Placed them in a
table in order of
pattern so their
undiscovered
elements and
table',
discovered
chemical
v 1869 atomic masses.
properties could
predicted their
properties
elements
matched his
be seen
predictions…read more

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