Which group on the periodic table has two elements that exist as gases at stp?

As I know, the elements which exist as gas in standard temperature and pressure (STP) is Fluorine and Chlorine. Now since the question asks about which group on the periodic table, we refer to the group of Fluorine and Chlorine. So the answer is:

Group 17 (VIIA) 

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?