Chlorine is a gas, bromine is a liquid, and iodine is a solid because of differences in the strength of their
a. hydrogen bonds.
b. dispersion forces.
c. dipole interactions.
d. polar bonds.

The London dispersion forces become progressively stronger. At a low enough temperature the molecules will all be solids. At a high enough temperature they will all be gases. It is only at temperatures between -7 °C and 59 °C that fluorine and chlorine are gases, bromine is a solid, and iodine is a solid

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >