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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.
What period is beryllium in on the periodic table?
by Answerbag Staff on January 13th, 2011
| 1 person likes this
Who corrected the periodic table?
by Answerbag Staff on January 10th, 2011
| 1 person likes this
What if Edge came to your work and speared your boss through a table?
by Have A Nice Day on December 1st, 2011
| 1 person likes this
Who organized the first version of the Periodic Table?
by Answerbag Staff on January 9th, 2011
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Ok, we're about to have a rash of new elements in the periodic table. Can you suggest some names for them?
by Piano Player on June 21st, 2011
| 4 people like this
You're reading why did mendeleev and later scientists classify the elements into groups?
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