Chemistry
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Periodicity in properties is observed in elements after definite intervals due to similar _________.
Related Questions
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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 _________.
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Across a period the nature of oxides and hydrides varies from _________ to _________ while the strength of oxy-acids _________ from left to right.
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Nuclear charge of an atom is the _________ charge on the nucleus of an atom, equivalent to the atomic _________ of an atom.