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Half life (intermediate)


The 106th element, seaborgium, was created artificially in 1974 by bombarding heavy nuclei with lighter ones at the HILAC collider (shown below).
Say, an unknown amount of seaborgium nuclides is produced at time, t=0.0 s.
The instruments detect 32 moles at t=2.0 s, which reduces to only 2.0 moles at t=6.0 s.
How many moles of seaborgium nuclides were present initially at t=0.0 s?
Choose 1 answer: