Question
Chemistry Question on Classification of elements & periodicity in properties
Arrange F, Cl, O, N in the decreasing order of electronegativity-
A
O > F > N > Cl
B
F > N > Cl > O
C
Cl > F > N > O
D
F > O > N ≈ Cl
Answer
F > O > N ≈ Cl
Explanation
Solution
Electronegativity(E.N) of elements are; F=4,Cl=3,N=3,O=3.5. Therefore, the trend is : F>O>N=Cl. This can be explained as, on moving from left to right across a period, the E.N increases and also on moving down a group from top to bottom the E.N decreases.