Question

Which of the following atoms would be expected to form negative ions in. bnary lonic compounds & which would be expected to form positive ions ? K, Li, o,V, Rb, cl, Au, I, Bi Expected to form negative ions! Expeeded to form positive ions? 11 Rank in (< the bonds (H-I, C-Br, IF, N-H) order of increasing Plarity using =, or )

Answer 1

t Metals expected to form postline sous EX K as k+ "Hi as hit Rb as Rbt Al as Aut Da Auto V as vt Bi as Bita negative ions Nonmetals expected to form

I N-H H l C-Br se HI (2.7-2-1) = 0.6 (2.8-2-5) = 0.3 C-Br Electronegativity values: H 2.1 C 2.5 F 4 N 3.0 Br 2.8 IF (4.8-2-7) = 4.3 N-u (3-0-2-1) = 0.9 I 2017 Order of polarining I-Fy N-4> U-I JCBR

o lonic ALF3, FeO, Coo, Zns. Maz N2 , Na₂S, Conalent Hel, No, NH3, PFs, Cl₂ cs