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If you will answer I will be add brainy list....1)Among the following, the element with smallest covalent radii is..a) Be..b) B..c) C..d)N..2)The ions O-2, F-, Na+, Mg+2, A1+3 are iso electronic. Their ionic radii show....a) An increase from 0-2 to F- and then decrease from Nat to Al+3...b) A decrease from 0-2 to F- and then increase from Nat to Al+3...c) A significant increase from O-2 to Al+3...d) A significant decrease from O-2 to A1+3...​

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ANSWER:

a SIGNIFICANT INCREASE from 0-2 to A1+3



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