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In modern periodic table, metals are towards the left hand side, non metals are towardsthe right hand side & there is a zig zag line between them which contains metalloids. Metals areelectropositive, ie, they have a tendency to lose electrons. As the effective nuclear charge actingon the valence shell electrons increases across a period, the tendency to lose electron willdecrease so metallic character decreases. Down the group, the effective nuclear chargeexperienced by valence electrons is decreasing because the outermost electrons are further awayfrom the nucleus. Therefore, they can be lost easily & thus metallic character increases down thegroup.Non metals on the other hand, are electronegative. They tend to form bonds by gainingelectrons.Non metallic charater increases along the period & decreases down the group.i. Which of the following element is not a metalloid?a. Ge b. As c. Ar d. Teii. The order of the metallic character of some element is Nelectronegative among these elements isa. N b. P c. Sb d. Biiii. Which of the following statements is correct?a. Electronegativity increases down the group.b. Metallic character decreases down the group.c. Effective nuclear charge decreases down the group.d. The force of attraction between nucleus &the outermost electrons increases down the group.iv. Which of the following property increases along the period?a. Atomic size c. Electropositivity. b. Metallic character d. nonmetallic characterv. Which of the following is the most non metallic element?a. P b. Cl c. Se d. Br |
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Answer» Answer: HIGH speed and the same your answer I am and Friday of next month or concerns regarding my life iii the taking your GRIEF is a brainlist to be at your convenience to the same to you are not filtered your answer is no name AGE |
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