Periodicity in elements is a crucial chapter in chemistry that highlights the recurring trends in the properties of elements across the periodic table, making it essential for entry test preparations like MDCAT, NUST, ECAT, and FSC board exams. This chapter covers the development of the periodic table, periodic laws, and trends in atomic size, ionization energy, electron affinity, electronegativity, as well as metallic and non-metallic character. A thorough understanding of periodicity enables students to predict chemical behavior, solve conceptual MCQs, and tackle questions related to element properties in entry tests. At PLS Academy, periodicity in elements is taught with an exam-focused approach, emphasizing trends, patterns, and frequently asked MCQs to help aspirants achieve top scores in entry tests and board examinations.
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