🛠️ JEE🧪 Chemistry

Which one of the following sets of ions represents a collection of isoelectronic species? (Given: Atomic Number: \(\math…

Q1

Which one of the following sets of ions represents a collection of isoelectronic species?

(Given: Atomic Number: \(\mathrm{F}:9,\mathrm{Cl}:17,\mathrm{Na}=11,\mathrm{Mg}=12\),\(\mathrm{Al}=13,\mathrm{K}=19,\mathrm{Ca}=20,\mathrm{Sc}=21\) )

[JEE Main 2023, 1 Feb (Shift 2)]

a

\({\mathrm{Li}}^{+},{\mathrm{Na}}^{+},{\mathrm{Mg}}^{2+},{\mathrm{Ca}}^{2+}\)

b

\({\mathrm{Ba}}^{2+},{\mathrm{Sr}}^{2+},{\mathrm{K}}^{+},{\mathrm{Ca}}^{2+}\)

c

\({\mathrm{N}}^{3-},{\mathrm{O}}^{2-},{\mathrm{F}}^{-},{\mathrm{S}}^{2-}\)

d

\({\mathrm{K}}^{+},{\mathrm{Cl}}^{-},{\mathrm{Ca}}^{2+},{\mathrm{Sc}}^{3+}\)

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