1 files changed, 14 insertions, 0 deletions
diff --git a/3669/CH1/EX1.6/6.sce b/3669/CH1/EX1.6/6.sce
new file mode 100644
index 000000000..eb6540e94
--- /dev/null
+++ b/3669/CH1/EX1.6/6.sce
@@ -0,0 +1,14 @@
+
+//Variable declaration
+e=1.6*10**-19;   //charge of electron(c)
+epsilon0=8.85*10**-12;    //permittivity(C/Nm)
+r0=0.281*10**-9;     //seperation(m)
+IE=5.14;     //ionisation energy of Na(eV)
+Ea=-3.61;     //electron affinity(eV)
+
+//Calculation
+V=-e**2/(4*e*%pi*epsilon0*r0);     
+CE=IE+Ea+(V);       //cohesive energy(eV)
+
+//Result
+printf('cohesive energy is %0.3f   eV  \n',CE)
+\ No newline at end of file