Q. 6 E5.0( 3 Votes )
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Both elements L and M belong to the same period.
Electronegativity increases along a period because:
The atomic radius goes on decreasing as we move from left to right due to which the attraction between the outer electrons and nucleus increases.
Also, there is increase in electronegativity with increase in ionization energy. Thus, L has lowest electronegativity.
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An incomplete forKerala Board Chemistry Part I