why 1 st group elements are more electropositive in their respective period
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Answer:
because they share electrons
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Hey here is your answer
Explanation:
The loosely held s-electron in the outermost valence shell of these elements makes them the most electropositive metals. They readily lose electron to give monovalent M+ ions. ... The atomic and ionic radii of alkali metals increase on moving down the group i.e., they increase in size while going from Li to CS
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