Answer
$R = 4.035 \times 10^{7} /h$
In $2020$, in every one hour, $ 4.035 \times 10^{7} $ electrons will intercept.
Work Step by Step
Let D indicate the current year (2020, 2021 and so forth),
$R = R_0 e^{ - t ln 2/T_{1/2}}$
$R = (7.0 \times 10^7 /h) e^{ - (D - 1996) ln 2/30.2 y} $
Today it's 2020, so
$R = (7.0 \times 10^7 /h) e^{ - (2020 - 1996) ln 2/30.2 y} $
No need to change unit in the exponential because the units will be canceled out, magnitude is what's left.
$R = (7.0 \times 10^7 /h)e^{ - (24 y) ln 2/30.2 y} $
$R = (7.0 \times 10^7 /h) e^{ -0.5508454415} $
$R = 4.035 \times 10^{7} /h$
In $2020$, in every one hour, $ 4.035 \times 10^{7} $ electrons will intercept.
