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Explain Covalent radius and ionic radius with an examples. |
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Answer» Solution :Covalent Radius: "When two atoms are bound together by a single bond in a covalent molecule distance between two atoms from centre is known as covalent radius." e.g. : Bond LENGTH of `Cl - Cl " in " Cl_(2)`molecule is 198 pm. So, its atomic radius is `(198)/2 = 98` pm Metallic Radius : "HALF the internuclear distance separating the METAL cores in the metallic crystal is known as metalic radius. EX.: The distance between two adjacent copper atoms in solid copper is 256 pm hence metalic radius of copper is assigned a value of 128 pm. |
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