Science, asked by Rohit20031, 1 year ago

derive the valency of element having isotops

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Answered by rishika18

Elements 43 (technetium), 61 (promethium) and all elements greater than 83 (bismuth), beginning with 84 (polonium) have no stable isotopes. ... The primary determinant of an element's chemical properties is its electron configuration, particularly the valence shell electrons.

rishika18: U welcome

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