Match the value of Born exponent with the appropriate compound. given that the Born exponent values for the individual ions are Be²⁺ = 5, F^- = 7, Zn²⁺, S^2- and Cl^- = 9, Rb⁺ = 10, Cs⁺ = 12 respectively.
-BeF₂

Question

Quizplus · Accepted Answer

We can calculate the Born exponent for BeF₂ using the following equation: Born exponent = (charge of cation x charge of anion)/(distance between ions) For BeF₂, the charges of the ions are +2 and -1, respectively. The distance between the ions can be estimated by summing the ionic radii for Be2+ and F- and dividing by 2: distance = (0.31 nm + 0.13 nm)/2 = 0.22 nm. Plugging these values into the equation, we get: Born exponent = (2 x 1)/(0.22 nm) = 9.09 This value is closest to option C, 6.33. It is important to note that the Born exponent is a rough estimate and can vary depending on the method used to calculate it.

Match the Value of Born Exponent with the Appropriate Compound