The covalent radius of arsenic atom is 1.21 $˙ A$ and effective nuclear charge of 4p electrons is equal to 6.4. The electronegativity of arsenic atom is ?

2.31

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2.69

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5.19

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2.1

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Solution

The correct option is B 2.31
Given,
$Z_{e f f} = 6.4$ and $r_{c o v a l e n t} = 1.21$
To find electronegativity allred-Rochow gave a formula which is as follows:
$X = \frac{(0.3590 \times Z_{e f f})}{(r_{c o v a l e n t}^{2})}$
So,
$X = 2.31$

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Similar questions

Q. Covalent radius of oxygen is 0.74 Å and its electronegativity is 3.5 . find effective nuclear charge experienced by oxygen?
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where

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= atomic radius,

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is effective nuclear charge

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The covalent radius of arsenic atom is 1.21˙A and effective nuclear charge of 4p electrons is equal to 6.4. The electronegativity of arsenic atom is ?

The correct option is B 2.31Given,Zeff=6.4 and rcovalent=1.21To find electronegativity allred-Rochow gave a formula which is as follows:X=(0.3590×Zeff)(r2covalent)So,X=2.31

The covalent radius of arsenic atom is 1.21 $˙ A$ and effective nuclear charge of 4p electrons is equal to 6.4. The electronegativity of arsenic atom is ?

The correct option is B 2.31
Given,
$Z_{e f f} = 6.4$ and $r_{c o v a l e n t} = 1.21$
To find electronegativity allred-Rochow gave a formula which is as follows:
$X = \frac{(0.3590 \times Z_{e f f})}{(r_{c o v a l e n t}^{2})}$
So,
$X = 2.31$