Question

which of the following is correct?
a) vander waal's radii of an element
b) Metallic radii always lesser than covalent radii
c) crystal radius is used for metals
d) Radius of cation is smaller than atomic radius of parent atom
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Answer 1

Answer:

(c) crystsl radius is used for metals

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Answer 2

Answer:

answer will be option c

crystal radius is used for metals