Which of following Species are isoelectronic but the first one is larger in size:
(a) `S^2-, O^2-`
(b) `Cl^-, S^2-`
(c) `N^3-, P^3-`
(d) `Cl^-. K^+`

Which of the following species is/are isoelectronic with Neon ? (i) N^(3-) (ii) Mg^(2+) (iii) K^+ (iv) Ca^(2+)

Which of the following are isoelectronic? 1K^(+)" "2. Ar" "3. Cl^(-)" "4. Ca^(+)

Which of the following species has the smallest size? (a) K^(o+), Sr^(2+), Ar , (b) Si, P, Cl , (c ) O, O^(ө), O^(2-)

Name the species that will be isoelectronic with the following atoms or ions. (a) Ca^(2+) , (b) Ne , (c ) Cl^(ɵ) ,(d) Rb^(o+)

(a) What do you understnd by isoelectronic species ? Give the formula of a species that will be isoelectronic with the following atoms or ions : {:((i) F ^(-), (ii) Ar),((iii) Mg ^(2+),(iv) ,Rb ^(+)):} (b) Which of the following species are isoelectronic ? (i) F^(-) , (ii) Mg ^(2 + ) , (iii) Na, (iv) F), ((v) Cl ^(-) (vi ) Al ^(3+), (vii) Ne, (viii) S ^(2-) (ix) Ca ^(2+) (x) K

In isoelectronic species Cl^(-),Ar,Ca^(2+) size differ due to

Which of the following atoms and ions are isoelectronic ? {:((i) Al^(3+), (ii) F, (iii)Cl ^(-)),((iv)O^(2-), (v) Na, (vi) Mg ^(2+)):} Arrange the isoelectronic ions in the decreasing order of their size.

Which of the following is a mixed anhydride (A) P_4O_10 , (B) SO_3 , ( C) Cl_2O_6 , (D) SO_2