Respuesta :
Answer:
Halogens
Explanation:
Fluorine and Chlorine are gases at room temperature.
Bromine is a liquid at room temperature.
Tennessine, Iodine, and Astatine are all solids at room temperature.
Answer: Group 17 (HALOGENS)
Explanation:
At STP,
Fluorine & Chlorine are gases
Bromine is a liquid
Iodine, Astatine & Tennessine are solids