Answer:
Red = O; blue = N; dark green = Cl; brown = Br; light Green = F; purple = I; yellow = S; orange = P
Explanation:
Hydrogen is in group 1 (1 A) of the periodic table and has a single electron, hence no lone pairs
Carbon belongs to group 16 (IV A) and has four electrons in its outermost shell with no lone pair.
Nitrogen and phosphorous atoms belong to group 15 (V A) and have a single lone pair in their orbital.
Oxygen and sulfur are present in group 16 (VI A) and have two lone pairs in their outermost shell.
Florine, chlorine, bromine and iodine all are halogens present in group 17 (VII A). They have three lone pairs in their outermost shell.