Question

Which list shows atoms in order of increasing electronegativity (smallest listed first) among Cs (Cesium), O (Oxygen), P (Phosphorus), and F (Fluorine)?

a) Cs, O, P, F
b) F, O, Cs, P
c) F, O, P, Cs
d) Cs, P, O, F

Answer 1

The order of increasing electronegativity among Cs, O, P, and F is F, O, P, Cs.

Step-by-step explanation:

In order of increasing electronegativity, the correct list among Cs (Cesium), O (Oxygen), P (Phosphorus), and F (Fluorine) is option c) F, O, P, Cs.

Fluorine has the highest electronegativity value (EN = 4.0), while cesium has the lowest (EN = 0.79). Electronegativities generally increase diagonally from the lower left to the upper right of the periodic table, which means that fluorine has the highest electronegativity and cesium has the lowest among the given elements.