what is Van der waals radius??
Anonymous:
Covalent radius is half of the internuclear separation between the nuclei of two single-bonded atoms of the same species (homonuclear). While van der Waals radius is used todefine half of the distance between the closest approach of two non-bonded atoms of a given element.
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Van der Waals Radius
van der Waals radius is defined as half of the internuclear separation of two non-bonded atoms of the same element on their closest possible approach and is denoted rv. As shown in the following figure, the red line indicates the van der Waals radius as the blue line is the diameter. In addition to not being covalently bonded, the atoms must also not be of the same molecule. The term incorporates the intermolecular forces (dipole-dipole, dispersion) and is therefore useful in determining how molecules pack in solid. rv is measured for two non-bonded atoms in the crystal of a molecule. The name for the term comes from its relationship to van der Waals Interactions. rv is generally greater than rcov for a given element. rv is also measured in terms of picometers (pm) and ångström
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van der Waals radius is defined as half of the internuclear separation of two non-bonded atoms of the same element on their closest possible approach and is denoted rv. As shown in the following figure, the red line indicates the van der Waals radius as the blue line is the diameter. In addition to not being covalently bonded, the atoms must also not be of the same molecule. The term incorporates the intermolecular forces (dipole-dipole, dispersion) and is therefore useful in determining how molecules pack in solid. rv is measured for two non-bonded atoms in the crystal of a molecule. The name for the term comes from its relationship to van der Waals Interactions. rv is generally greater than rcov for a given element. rv is also measured in terms of picometers (pm) and ångström
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The Van der Waals radius is equal to one half the distance between two unbonded atoms when the electrostatic forces between them are balanced.
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