by smurf-it-t on March 18th, 2010

smurf-it-t

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why did mendeleev and later scientists classify the elements into groups?

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  • by osurlosers on March 27th, 2010

    osurlosers

    Elements in a group have a simliar electron configuration (and therefore number of valence electrons). Because the number of valence electrons determines chemical properties, it makes sense to group the elements that have similar properties.

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