Question

Which of the following gives the correct increasing order of the atomic radii of O, F and N ?
(i) O, F, N
(ii) N, F, O
(iii) O, N, F
(iv) F, O, N
Correct option is (iv), why!???

Answer 1

Firstly, As the atomic number increases along a period, the radius for each element decreases and vice versa as you move down a group, the radius increases. So Fluorine, Oxygen, Nitrogen is the correct increasing order of the atomic radii

Answer 2

option IV is correct because the atomic radius of element and atom depends upon its electronegativity order which is given below-
F>O>N
this means that the electronegativity of fluorine is highest from all three then Oxygen and then nitrogen
NOW,,, what is electronegativity???
It is the amount of energy required to attract the bond pair of electron.Example- HF,,, in HF molecule the bonded electron will be more in the side of fluorine because it is electronegative in nature and hydrogen is electropositive so there is a partial separation of electron between both and a partial positive charge will appear on hydrogen and a partial negative charge will appear on fluorine...
if it helps you then please mark as brainliest...