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| 1. |
Vander waal radius definition |
| Answer» Van der Waals radiusIt Is defined as one half the distance between the nuclei of two identical non bonded isolated atoms or two adjacent identical atoms belonging to twoneighbouring molecules of an element in the solidstate.The magnitude of the van der Waal radius dependsupon the packing of the atoms when the element isin the solid state.For Example:The inter nuclear distance between twoadjacent chlorine atoms of the two neighbouringmolecules in the solid state is 360 pm. The van derwaals radius of chlorine atom is 180 pm.The inter nuclear distance between two adjacent hydrogen atoms of the two neighbouring moleculesin the solid state 240 pm. The van der Waals radius is120 pm | |