Question

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26. Which of the following does not have eight valence electrons? A) Ca+ B) Rb+ C) Xe D) Br E) All of the above have eight valence electrons. as the magnitude of the ion 27. In ionic bond formation, the lattice energy of ions charges A) decrease, decrease, decrease B) increases, increase, increase C) decreases, increase, increase D) increases, increase, decrease E) increases, decrease, decrease and the radii 28. Which formula/name pair is incorrect? A) Mn(NO2)2 manganese(II) nitrite B) Mg(NO3)2 magnesium nitrate C) Mn(NO3)2 manganese(II) nitrate D) Mg3N2 magnesium nitrite E) Mg(Mn04)2 magnesium permanganate 29. The formal charge on nitrogen in NO3-is , where the Lewis structure of the ion is 0: 0 A) -1 B) 0 C) +1 D)+2 E) -2 30. The molecular geometry of the Br03- ion is A) trigonal pyramidal B) trigonal planar C) bent D) tetrahedral E) T-shaped 31. What type(s) of intermolecular forces exist between Br2 and CC14? A) dispersion forces B) dispersion forces and ion-dipole C) dispersion forces and dipole-dipole D) dispersion forces, ion-dipole, and dipole-dipole E) None. Since both are gases at room temperature they do n