Question

y u e equations reproso ate of the ions. [2 x 4 pts) 38. What is the 2 state (i) The electron affinity of S- (ii) The fourth ionization energy of titanium (TI) 34. For each of the following pairs, indicate which one of the two species is larger: 13x101 (a) N-or F- (b) Mg2+ or Ca2+ (c) Fe2+ or Fe3+ 35. An atom of a certain element has 15 electrons. Without consulting a periodic table, answer the following questions: (a) What is the ground-state electron configuration of the element? [4 pts) 12 pts) (b) How should the element be classified? (c) Is the element diamagnetic or paramagnetic? 11 pt1 36. The atomic radius of K is 216 pm, and that of K is 133 pm. Calculate the percent decrease in volume that occurs when K(g) is converted to K*(g). [The volume of a sphere is (4/3), there is the radius of the sphere.) [10 pts)

Answer 1

Ans 34:Langur thi ion/maliculi muans, fighr thi spac covexed by thir Constitunt atom ar roup hom- n-bending e peixs in 3-D space (a) Out N3 and f N will than occupy ion. N3 F more spacu (b) 2+ 24 Out Ma and Cation Laigur than ion will bu C2+ 2t Miont 2+ Ca 2+ fe and fe3t (C) Dur to highr etfective nucliar charge Ft fe2t ion will bu &malur than 2+ fe > fe3t Ans: 35 Eliment has 15 eluctrons =No.proton (a) Ground state eluctronic camfiguration is as follows: No. ef e = Atomic no f elament Is2, 2s2p 32 3p Acc. to Afbau rulu) Atomic No 15= (b) from above ground state elctronie configurati on elament can ba classifisd as Last elictron) = 3 So nC princiblu quantum nuber it will bgbalong to 3rd Last e was filled b-subshull, maans it bulong& to b-block elimunt b-subshull pos Se 3-e, so it blongto p-block elimunts * So it albo be a non-matal ewmd hawing potential a a Thi p- subshall is exactly Ralf fiuld ie.contains 3-unpaired peried 3 d roup high Tomisation (C) eluctrons. do elament wil hoo baya magetic heRaui