Question

Which of the following sets contain only isoelectronic ions?
(A) Zn²+, Ca²+, Ga3+, Al3+
(B) K+, Cazt, Sc3+, CF
(C) P, S, CI, Zn^2
(D) Ti", Ar, Cr3+, VS+​

Answer 1

Answer:

(b, c)

Explanation:

(a) Zn2+ (30 – 2 = 28), Ca2+ (20 – 2 = 18), Ga3+ (31-3= 28), Al3+ (13 – 3 = 10) are not isoelectronic.

(b) K+ (19 – 1 = 18), Ca2+ (20 – 2 = 18), Sc3+ (21 – 3 = 18), Cl– (17 + 1 = 18) are isoelectronic.

(c) P3- (15 + 3 = 18), S2- (16 + 2 = 18), Cl– (17 + 1 = 18), K+ (19 – 1 = 18) are isoelectronic.

(d) Ti4+ (22 – 4 = 18), Ar (18), Cr3+ (24 – 3 = 21), V5+ (23 – 5 = 18) are not isoelectronic.

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Answer 2

Answer:

the answer is b and c.

Explanation:

because isoelectronic ions have same atomic no. or number of elrctrons