Which of the following pair of elements will have least electronegativity difference?

Question

Which of the following pair of elements will have least electronegativity difference? (A) Cs,I (B) Li,I (C) Na,Cl (D) Cs,F

Tardigrade Admin · Accepted Answer

In the periodic table, the electronegativity decreases down the group. Iodine is a nonmetal with high electronegativity while rest are the alkali metals on which lithium has the highest electronegativity.
Therefore,

L i, I

give the minimum electronegativity difference.

Q. Which of the following pair of elements will have least electronegativity difference?

$C s, I$

$L i, I$

$N a, Cl$

$C s, F$

In the periodic table, the electronegativity decreases down the group. Iodine is a nonmetal with high electronegativity while rest are the alkali metals on which lithium has the highest electronegativity.
Therefore, $L i, I$ give the minimum electronegativity difference.

Q. Which of the following pair of elements will have least electronegativity difference?

Cs,I

Li,I

Na,Cl

Cs,F

In the periodic table, the electronegativity decreases down the group. Iodine is a nonmetal with high electronegativity while rest are the alkali metals on which lithium has the highest electronegativity. Therefore, Li,I give the minimum electronegativity difference.

$C s, I$

$L i, I$

$N a, Cl$

$C s, F$

In the periodic table, the electronegativity decreases down the group. Iodine is a nonmetal with high electronegativity while rest are the alkali metals on which lithium has the highest electronegativity.
Therefore, $L i, I$ give the minimum electronegativity difference.