3f) Will discuss 4a) share, covalent bond, molecule (also polyatomic ions) 4b) ΔEN < 1.8 4c) Subscript is the number of each type of atom that are sharing their ve- 4d) Will discuss 4e) Polyatomic ions. It is different from molecular compounds because the polyatomic ion atoms need more or less ve- to follow the Rule of Eight. 5a) Number of shared ve- 5b) SB, DB, TB 5c) TB, DB, SB 6a) Ca - 1.0 , Br - 2.8, ΔEN = 2.8-1.0 = 1.8, Ionic bond (IC or ions) 6b) N - 3.0 , O - 3.5, ΔEN = 3.5-3.0 = 0.5, Covalent bond 6c) Cr , Ag Two metals so Metallic bond (don't use EN) Part II a) C1Cl4, 32ve- *C is central atom, 0LP *4 single bonds b) PO33-, 26ve- *P is central atom, 1LP *3 single bonds c) NO31-, 24ve- *N is central atom, 0LP *2 single bonds, 1 double bonds d) S1Br6, 48ve- *S is central atom, 0LP *6 single bonds Part III a) Tetrasulfur nonachloride b) S1O3 c) Nitrogen dioxide d) F5Cl1 e) H1Cl1O3 Part IV (Answers to LDS are above) a) C1Cl4 *Tetrahedral, 109.5° b) PO33- *Pyramidal, 107.0° c) NO31- *Trigonal planar, 120° d) S1Br6 *Octahedral, 90°, 90° |