Answer:
A. True
Step-by-step explanation:
Bromine is indeed the only non-metal element that is liquid at room temperature. It has a melting point of -7.2 degrees Celsius (19 degrees Fahrenheit) and boils at 58.8 degrees Celsius (137.8 degrees Fahrenheit), which means it exists as a liquid under typical room temperature conditions. Most other non-metals, like oxygen, nitrogen, and carbon, are gases at room temperature.