Physics homework help

Posted on 2013-11-27 12:27:00 in Physics by CHRISTINA

Potassium bromide (KBr) has a density of 2750kg/m^3 and the same crystal structure as NaCl. The mass of potassium is 6.49×10^?26kg , and that of bromine is 1.33×10^?25kg . Calculate the average spacing between adjacent atoms in a (KBr) crystal in nm.

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