Finding percent ionic character?

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Finding percent ionic character?

I am asked to find the percent ionic character of CaF_2 and SiO_2.

I am given the formula %ionic character = {1-exp[-.25(x_a - x_b)^2]} x 100

My problem is that I don't understand what the formula means. What is exp? I know x_a and x_b are electronegativities.

2007-08-26 18:46:14 · 1 answers · asked by Vu 3 in Science & Mathematics ➔ Chemistry

1 answers

exp(x) is e to the power of x.

You will find the function on your calculator.

2007-08-26 20:13:57 · answer #1 · answered by Gervald F 7 · 0⤊ 1⤋