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Indian Navy SSR c11periodicgenesis — practice questions

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Per NCERT §3.2 + Table 3.3, Mendeleev predicted the existence of 'Eka-aluminium' and 'Eka-silicon' — which latPer NCERT §3.3, the MODERN periodic law (post-Moseley 1913) states that properties of elements are a periodic The most electronegative element on the periodic table is: