Doubt from Periodicity

solved
finding-lattice-enthalpy
periodic-properties
finding-dipole-moment
easy
pp
#1

#3

Second question is 1 D because 4-3=1 as F is more electro negative and hence th3 dipole is directed from fluorine to chlorine.

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#4


Ask if you have any query.

#5

Here is the solution for q1. I found the formula in my notes