Q4 / 160 · AP EAMCET 2023 (15 May Shift 1) · Chemistry

Identify the pair of elements with the highest and lowest electronegativity respectively

A
$\mathrm{K}$ and $\mathrm{Rb}$
B
I and F
Correct answer
C
$\mathrm{F}$ and $\mathrm{Fr}$
D
Fr and $\mathrm{Li}$

Solution

Fluorine (F) is the element with highest electronegativity, lying at the extreme right in the second period. Francium (Fr) is the most electropositive or least electronegative element, lying at the bottom left of the periodic table.

Hence, the correct answer is option: 'C'.

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