What trend is seen in the non-metallic character of the elements as we go from left to right within a period?
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As we move from left to right in a period, the number of valence electrons increases by one at each succeeding element but the number of shells remains same. Due to this effective nuclear charge increase. More is the effective nuclear charge, more is the attraction between nuclei and electron.
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As we move across the periodic table, there is an increasing tendency to
accept electrons (non-metallic) and a decrease in the possibility that an atom would give up one or more electrons.
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