Chemistry
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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.
Related Questions
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Across a period the valence electrons increase by _________ while down a subgroup they _________.
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Across a period, the electropositive character _________ and down a group the electronegative character _________.
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Elements of group 1 [IA] are strong _________ agents since they are electron _________.
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The element in group 17 [VIIA] which is a liquid at room temperature is _________.