Question

Which of the following groupings represent a collection of isoelectronic species? *

a) N3- ,F- ,Na+

b) Ca2+, Cs+, Br

c) Be,Al3+, Cl-

d) Na+, Ca2+, Mg2+

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Answer 1

Answer:

Isoelectronic species are the neutral atoms, cations or anions of different elements which have the same number of electrons but different nuclear charge. N3-, F– and Na+ each have 10 electrons.

The correct option is A

Answer 2

Option 1:) N3- ,F- ,Na+

is correct....

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