Isothermal Expansion of a Gas

A container holds a gas at a pressure of 2 atm and a temperature of 300 K. If the gas undergoes an isothermal expansion to double its volume, what will be the final pressure of the gas in atm?

Assume the behavior of the gas follows Boyle's Law, which states that pressure and volume are inversely proportional when temperature is held constant (P1V1 = P2V2).