Which one of the following sets of ions represents the collection of isoelectronic species?
A
`K^(+), Cr, Mg^(2+), Sc^(3+)`
B
`Na^(+), Ca^(2+), Sc^(3+), F^(-)`
C
`K^(+), Ca^(2+), Sc^(3+), CI^(-)`
D
`Na^(+), Mg^(2+), AI^(3+), CI^(-)`
Text Solution
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The correct Answer is:
C
Which one of the following ……….. Atomic number of K, Ca, Sc and CI are 19, 20, 21 and 17 respectively. `K^(+) = 18e, Ca^(2+) = 18e, Sc^(3+)= 18e, Cr = 18e`
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