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QJEEM06Chad19: JEE Main 2006 Chemistry - Class 11 JEEM06Chad19 Solution: Which of the following sets of ions represents a collection of…

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

Multiple Choice Options

  • A N3-, O2-, F-, S2-
  • B Li+, Na+, Mg2+, Ca2+
  • C K+, Cl-, Ca2+, Sc3+
  • D Ba2+, Sr2+, K+, Ca2+

Step-by-Step Verified Solution

Option (c) is correct.

In K+(19) no. of electrons

=19−1=18

In Cl−(17) no. of electrons

=17+1=18

In Ca2+(20) no. of electrons

=20−2=18

In Sc3+(21) no. of electrons

=21−3=18

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