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(i) In a period, atomic radius decreases and ionization enthalpy increases with the increase in atomic number of elements. (ii) Electronegativity increases with increase in atomic radius. (iii) Metallic properly decreases with decrease in electronegativity. (iv) Atomic radius generally increases with increase in metallic property of elements.If (T) stands for true and (F) for false statement the which-one from following is. true for above statements. |
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Answer» TFFT (i) `LHS to RHS` ` to ` ATOMIC RADIUS decreases `to` ` :. ` Ionisation ENTHALPY increase ` :. ` (i) Is True (ii) In a Period : LHS to RHS Electronegativity increaes but in group decreaes. ` :. ` (ii) is False e.g. Li (1.0), Be (1.5) , B (2.0) , C (2.5), N (3.0) , O (3.5) F(4.0) in the period. (iii) Metallic property increases with decrease in electronegativity. ` :. ` (iii) is False (iv) Atomic radius generally increases with increase in metallic property eg. `Li to Na to K to Rb` elements in group and `F to O to N to C to Be to Na` in a Period. ` :. (iv) ` is True |
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