Radium-226 is a radioactive isotope that decays exponentially at a rate of 0.0428% per year. The amount of radium-226, R, remaining after t years can be found by the formula R(t) = R₀e^-0.000428t, where R₀ is the original amount present. If there are originally 10 grams of radium-226, determine the amount of radium-226 remaining after 1000 years.