he atomic radii of Li and O2- ions are 0.068 and 0.140 nm, respectively. (a) Calculate the force of attraction in newtons between these two ions at their equilibrium interionic separation (i. e., when the ions just touch one another). (b) What is the force of repulsion at this same separation distance

a

b

Explanation:

Generally the force of attraction between this two irons is mathematically represented as

Here k is known as the proportionality constant with value

substituting -2 for i.e the charge on oxygen , +1 for i.e the charge on Lithium and for r

So

Generally the force of repulsion will be the magnitude but different direction to the force o attraction

So Force of repulsionn is

the answer is a. at the equator

terd muffin is the correct answer