Q&A Forum
##### Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear

Nov 8, 2014

# strength of ionic bond

How does the bond strength varies over elements ? NaCl or KCl is stronger ? NaF or NaCl is stronger ? KCl of NaF stronger ? Is there any way to predict the bond strength by the datas of ionization energy and electron affinity value ?  i mean can we calculate energy released during bond formation of NaCl or other elements by substracting ionization energy from electron affiniy value ?

Swathi Ambati

Member since Apr 28, 2014

The strength of ionic compound or ionic bond is depends on Lattice energy. If the magnitude of lattice energy is more the stability of ionic bond is more. The lattice energy depends on the ionic charges and ionic sizes.  Size of ions: Smaller the ionic size greater will be lattice energy. Charge on the ions: Greater the charge on the ions greater will be lattice energy. Between NaCl and KCl ,NaCl is stronger than KCl . Reason: The size of sodium ion is lesser than the size of Potassium ion. Hence Smaller the ionic size greater will be lattice energy NaCl > KCl Between NaF and NaCl, NaF is stronger. NaF>NaCl Between KCl and NaF ,NaF is stronger NaF > KCl Yes, the Born Haber cycle is used to measure the lattice energies of ionic compounds. The concepts involved in the Born Haber cycle are ionization energy, electron affinity, dissociation energy, sublimation energy, heat of formation, and Hess' Law.
###### Like NextGurukul? Also explore our advanced self-learning solution LearnNext
Offered for classes 6-12, LearnNext is a popular self-learning solution for students who strive for excellence
Explore
Animated Video
lessons
All India
Test Series
Interactive Video
Experiments
Best-in class
books