Which of the following sets contain only...

Which of the following sets contain only isoelectronic ions?

`P^(3-) , S ^(2-) , Cl ^(-) , K ^(+)`

`Na ^(+), K ^(+), Cl ^(-) , F ^(-)`

`Ti ^(4+), Sc ^(3+), Cl ^(-) Ar`

` O^(2-), Na ^(2+), F ^(-), Ar`

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The correct Answer is:

A, C

(a ) all have 10 electrons, (c ) all have 18 electrons.

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Which of the following sets contain only isoelectronic species?

`K^(o+), Ca^(2+), Sc^(3+), Cl^(ɵ)`

`Zn^(2+), Ca^(2+), Ga^(3+), Al^(3+)`

`Ti^(4+), Ar, Cr^(6+), V^(5+)`

`P^(3-), S^(2-), Cl^(ɵ), K^(o+)`

`N^(3-), O^(2-), N e , Na^(+)`

`NO_(3)^(-), SiO_(4)^(4-) , CO_(3)^(2-)`

`Hg^(2+), Pb^(4+)`

`H,He^(+), Li^(2+), Be^(3+)`

`N^(3-), O^(2-), N e , Na^(+)`

`NO_(3)^(-), SiO_(4)^(4-) , CO_(3)^(2-)`

`Hg^(2+), Pb^(4+)`

`H,He^(+), Li^(2+), Be^(3+)`