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who created the periodic table

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by

Brogan Gunn

on 13 May 2011

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Transcript of who created the periodic table

Who created the periodic table Dmitri Mendeleev created the first periodic table in 1869. Other people before Mendeleev had organized the atomic structures according to their properties The Periodic Table is organized by atomic number, metals, nonmetals, metalloids, periods, groups, and stability. the groups are divided into alkali metals, alkaline earth, basic metal, halogen, noble gas, non-metal, semi-metal, transition metal, lanthanide, and actinide alkali metals
The alkali metals are the most reactive of all of the metals. they are the ones that "blow up" when they hit water.

an example of alkali metal is lithium alkaline earth metals
one property is that they are very soluble an example of this type is magnesium basic metals
basic metals are solid at room tempeature accept for mercury they have high densities

an example of this is bismuth halogen
highly reactive with alkali metals

iodine vapour noble gasses
fairly non rective
xenon non-metal
poor electrical condutors
nitrogen semi metal
Possess some characteristics of metals/some of nonmetals
tellurium transition metal
these metals are very hard
copper is atransitionmetal lanthanide
Burn easily in air
lanthanum is an example of a lanthanide actinide
are all radio active
uranium is an actinide
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