JEE Chemistry
JEEChemistryPeriodic Table & PeriodicityClass 11

What are the most common mistakes students make in Periodic Table & Periodicity?

it DECREASES left-to-right as nuclear charge pulls electrons closer.

Top mistakes to avoid in Periodic Table & Periodicity: • it DECREASES left-to-right as nuclear charge pulls electrons closer. • reversing the across-a-period trend. • ignoring small dips (e.g. B<Be, O<N) caused by sub-shell stability. • assuming metals have high electronegativity. • confusing metallic character with electronegativity (they're opposites).

Common mistake

it DECREASES left-to-right as nuclear charge pulls electrons closer.

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