Using the trends in the periodic table, rank the following atoms in order of increasing electronegativity.
K, Rb, H,
Br, F, Cl
C, O, F
Based on trends in the periodic table, electronegativity generally increases from left to right across a period and from bottom to top within a group.
The order of increasing electronegativity for the given atoms is:
H < K < Rb
C < O < F
Cl < Br < F