The correct order of electronegativity for given elements is

The electronegativity values on the Pauling scale are C (Carbon) = 2.55, P (Phosphorus) = 2.19, Br (Bromine) = 2.96, and At (Astatine) ≈ 2.2.

Since electronegativity increases from left to right across a period and from bottom to top in a group, the elements can be ranked by comparing these values.

Ordering from highest to lowest gives $$ Br (2.96) > C (2.55) > At (2.2) > P (2.19) $$. Therefore, the correct order is Br > C > At > P.