For the elements Rb, F, and O, the order of increasing electronegativity is
A) Rb

Question

For the elements Rb, F, and O, the order of increasing electronegativity is
A) Rb < O < F.
B) Rb < F < O.
C) O < F < Rb.
D) F < Rb < O.
E) none of these.

Quizplus · Accepted Answer

Electronegativity increases across a period from left to right and decreases down a group in the periodic table. Rb (Rubidium) is an alkali metal, F (Fluorine) is a halogen, and O (Oxygen) is a chalcogen. Fluorine is the most electronegative element, followed by oxygen, and rubidium is one of the least electronegative elements because it is further down the group. Therefore, the correct order of increasing electronegativity is Rb < O < F.

For the Elements Rb, F, and O, the Order of Increasing