Question

F,Cl,Br keep in increasing elctro negativity

Answer 1

as we know that

electornegativity values decreases from top to bottom in a group

so increasing value is

Br , Cl , F

Answer 2

Hello,
There are many methods.
Some of them are::
1st method :

F has electronegativity = 3.98.
Cl has electronegativity = 3.16
Br has electronegativity = 2.96

So the increasing order of electronegativities of F, Cl, Br is Br<Cl<F.

(OR)
2nd method:

EN of an element= (IE + EA)/2
Where EN is Electronegativity of that element
Where IE is Ionisation Enthalpy of that element
Where EA is Electron Affinity of that element
Finding the values and calculating.

(OR)
3rd method:
Is in the pic.

Hope you find my answer useful and hope you mark my answer as brainliest !