Question

which of the following sets have isoelectronic species

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Answer 1

Answer:

Isoelectronic means the species must have the same electronic configuration.

→ Only the set of K

+

,Ca

2+

,Sc

3+

,Cl

−

represents isoelectronic species.

K, Z=19, Number of electrons in K

+

=18

Ca, Z=20, Number of electrons in Ca

2+

=18

Sc, Z=21, Number of electrons in Sc

3+

=18

Cl, Z=17, Number of electrons in Cl

−

=18

Explanation:

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