How many of the following radius orders are incorrect (i) `N^(-3)>P^(-3)` ii) `O^(-2)>F^(-)`(iii) `Ca^(+2)>Sr^(+2)` (iv) `S^(-)>S^(-2)` (v) `S^(-2)>O^(-) `

How many of the following species have bond order of 2.5 ? N_(2)^(o+) (ii) N_(2)^(Theta) (iii) O_(2)^(o+) (iv) O_(2)^(Theta) (v) NO (vi) CN .

How many of the following are possible 1p,2s,3p,3f,3d

Among the following which species is/are paramagnetic (i) Sr^(2+) (ii) Fe^(3+) (iii) Co^(2+) (iv) S^(2-) (v) Pb^(2+)

To which element do the following electronic configuration correspond to (i) 1s^(2)2s^(2)2p^(6)3s^(1) (ii) 1s^(2)2s^(2)2p^(6)3s^(2)3p^(1) (iii) 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6) (iv) 1s^(2)2s^(2)2p^(5) (v) 1s^(2) 2s^(1)

The electronic configuration of some elements are given below: (i) 1s^(2) 2s^(2) (ii) 1s^(2) 2s^(2) 2p^(6) (iii) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(5) (iv) 1s^(2) 2s^(2) 2p^(1) Which does belong to s-block ?

The electronic configuration of some elements are given below: (i) 1s^(2) 2s^(2) (ii) 1s^(2) 2s^(2) 2p^(6) (iii) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(5) (iv) 1s^(2) 2s^(2) 2p^(1) Which does have the highest IE ?

The electronic configuration of some elements are given below: (i) 1s^(2) 2s^(2) (ii) 1s^(2) 2s^(2) 2p^(6) (iii) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(5) (iv) 1s^(2) 2s^(2) 2p^(1) Which is a halogen ?

The electronic configuration of some elements are given below: (i) 1s^(2) 2s^(2) (ii) 1s^(2) 2s^(2) 2p^(6) (iii) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(5) (iv) 1s^(2) 2s^(2) 2p^(1) Which does have valency three ?

Elements with their electronic configurations are given below: Answer the following questions: (I) 1s^(2) 2s^2 (II) 1s^(2) 2s^(2) 2p^(6) (III) 1s^(2) 2s^(2) 2p^(6) 3s^(2) (IV) 1s^(2) 2s^(2) 2p^(3) (V) 1s^(2) 2s^(2) 2p^(5) The element with lowest value of electron affinity is:

Calculate the O.S. of all the central atoms in the following species : (i) ClO^(-), (ii) NO_(2)^(-) , (iii) NO_(3)^(-) , (iv) C Cl_(4), (v) K_(2)CrO_(4) " and " (vi) KMnO_(4)