Question
A large cyclotron directs a beam of $\textrm{He}^{++}$ nuclei onto a target with a beam current of 0.250 mA. (a) How many $\textrm{He}^{++}$ nuclei per second is this? (b) How long does it take for 1.00 C to strike the target? (c) How long before 1.00 mol of $\textrm{He}^{++}$ nuclei strike the target?

a) $7.81 \times 10^{14} \textrm{He}^{++}\textrm{nuclei/s}$

b) $4.00 \times 10^3 \textrm{ s}$

c) $7.71 \times 10^8 \textrm{ s}$

Solution Video