Question

com PLIUS. Draw Lewis structures for the following species. Show resonance forms if needed, indicating the preferred structure. Include the electron geometry, molecular geometry and bond angles. A.) XF, in which X is an element that has 8 valence electrons and the d orbitals are energetically accessible to use. B.) XC , in which X is an element that has 7 valence electrons and the d orbitals are energetically accessible to use. HTML Editor BIVAA. IE3 3 1 1 x x - 5 C 2 VO T : 12pt - Paragraph . O words MacBook Pro # 3 $ 4 % 5 6 7 8 9

Answer 1

(A XE2 x = 8 valence f = 2s²2p5 electrons = 7 Total valence electrons = 8 + 2 (7) = 22 Lewis structure f —. - É geometry : Trigonal bipyramidal geo Elecctron - :- X Molecular geometry = linear. Bond angle F-X - F = 180° Lone pair + bond pair = 3+2 =5 (sp3 d.) (B) Xces ce = 352 3ps. X = 7 electrons Total valence electrons : 7 + 5(7) = 42 Lewis structure :

Steric number - Bond pair tlone pair = 5 + .6 Hybridization - SP²d². Electron geometry = Octahedral Molecules geometry - Squase pyramidal Bond angle : 90' and <90° due to to presence of lone pair. is