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-rw-r--r--1427/CH22/EX22.8/22_8.sce6
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diff --git a/1427/CH22/EX22.8/22_8.sce b/1427/CH22/EX22.8/22_8.sce
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+//ques-22.8
+//Calculating radius of sodium atom
+clc
+a=429;//cell edge /(in pm)
+r=sqrt(3)*(a/4);//atomic radius
+printf("The radius of sodium atom is %.0f pm.",r);