the exact outer limit of an isolated atom cannot be mea sured, what criterion can we use to determine atomic radii? What is the difference between a covalent radius and a metallic radius?
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Answer:
Calculate the atomic radii of two touching or overlapping atoms.
Explanation:
we can't find the atomic boundary of a single atom, but when atoms are in the form of pairs it becomes very easy to measure the atomic radii of two and then dividing it by 2 to get an estimate of atomic radius of a single atom.
It is also called as covalent radius which is half of the total inter-nuclear distance between two same bonded atoms (Homo-nuclear).
If two adjacent mettalic ions are joined by such pairing then the same half of the distance between the nucleus is termed as metallic radii.
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