Question

Calculate the electronegativity of chlorine atom given ionisation and electron affinity of atom are 1255 and 348 KJ/mol respectively.​

Answer 1

(1) Mulliken's scale

Electronegativity =  

2

Ionisation potential + electron affinity

​

 

Electronegativity =  

2

17.42+3.45

​

=10.435=x

(2) Pauling scale

Electronegativity =  

5.6

Ionisation potential + electron affinity

​

 

Electronegativity =  

5.6

17.42+3.45

​

=3.73=y

2.023

(x+y)

​

=  

2.023

(10.435+3.73)

​

=7