Question

158. The covalent radius of arsenic atom is 1.21 Å
and effective nuclear charge of 4p electrons
is equal to 6,4. The electronegativity of arsenic
atom is
1) 2.31 2) 2.69
3) 5.19
4) 2.1​

Answer 1

Answer:

Given,

Zeff=6.4 and rcovalent=1.21

To find electronegativity allred-Rochow gave a formula which is as follows:

X=(rcovalent2)(0.3590×Zeff)

So,

X=2.31

Given,

Zeff=6.4 and rcovalent=1.21

To find electronegativity allred-Rochow gave a formula which is as follows:

X=(rcovalent2)(0.3590×Zeff)

So,

X=2.31