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Atomic theory Timeline (Softschools.com)

Atomic theory is the scientific theory of the nature of matter. The theory states that matter is made up of small particles called atoms. Prior to this theory, matter was thought to be able to be divi ...

Mendeleev's Periodic Tabl? At grade

Mendeleev's periodic table and the groups and periods.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Crystal Bal? Basic

Find out how and why Mendeleev invented his periodic table of the elements and how he used his table to predict unknown elements.

It is an educational content of CK-12 Foundation (to access some of the ...

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