In 1964, Soviet scientists made a new element with atomic number 104, called simply E104, by bombarding

Question:

In 1964, Soviet scientists made a new element with atomic number 104, called simply E104, by bombarding plutonium with neon ions. The half-life of this new element is 0.15 seconds, and it was produced at a rate of 2 x 10-5 micrograms per second. Assum.ing none was present initially, how much E104 is present after t seconds?