Chemistry
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Across a period, the electropositive character _________ and down a group the electronegative character _________.
Related Questions
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Periods are _________ horizontal rows of elements in the periodic table and an element with three electron shells and two electrons in it's valence shell belongs to period _________ and group _________.
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Across a period the valence electrons increase by _________ while down a subgroup they _________.
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Elements at the extreme left of the modern periodic table are _________ reactive, while elements on the extreme right [group 18 (0)] are _________reactive.
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Elements of group 1 [IA] are strong _________ agents since they are electron _________.