Which one of the following have least effective nuclear charge?
(A) `O_2`
(B) `F^-`
(C) `Na^+`
(D) `mg^2+`

Which of the following is generally true regarding effective nuclear charge (Z_(eff)) :

Which of the following statement is most correct ? Effective nuclear charge of atom depends on

Which of the following has fractional bond order? (A) O_(2)^(2+) (B) O_(2)^(2-) (C) F_(2)^(2-) (D) H_(2)^(-)

Which of the following have largest radius? A) H^- B) F^- C) N^- D) O^-

Which one of the following will have the largest number of atoms? (A) 1g Fe (at mass of Fe = 56 ) " " (B) 1g Na (at mass of Na = 23 ) (C) 1g Li (at mass of Li =7 ) " " (D) 1g F_(2) (at mass of F =19 )

Which of the following is with highest and lowest flocculation value among AI^(+3), Na^(+), Mg^(+2), Na^(+2) ?