which one of the following ions has the highest value of ionic radius?

1.	which one of the following ions has the highest value of ionic radius?a)O2- b)B3+ c)Li+ d)F-
Answer» This can be explained on the basis of z/e, where as z/e ratio increases, the size decreases and when z/e ratio decreases the size increases. z is atomic number and e is number of electrons. For Li+, z/e = 3/2 = 1.5 For F-, z/e = 9/10 = 0.9 For O2-, z/e = 8/10 = 0.8 For B3+, z/e = 5/2 = 2.5 The correct option is O2-

which one of the following ions has the highest value of ionic radius?a)O2- b)B3+ c)Li+ d)F-

Answer»

This can be explained on the basis of z/e, where as z/e ratio increases, the size decreases and when z/e ratio decreases the size increases.

z is atomic number and e is number of electrons.

For Li+, z/e = 3/2 = 1.5

For F-, z/e = 9/10 = 0.9

For O2-, z/e = 8/10 = 0.8

For B3+, z/e = 5/2 = 2.5

The correct option is O2-