Describe the trends in electron configuration in the periodic table by selecting the terms from the drop-down menus.The number of valence electrons from the left to right across a period.
The number of valence electrons from the top to the bottom of a group.
Electrons are added into the outermost in Groups 1 and 2.
Electrons are added in the outermost in Groups 3 through 12.
Electrons are added in the outermost in Groups 13 through 18.
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