Answer:
6.83 × 10⁻² N
Explanation:
Given:
Number of protons contained by plutonium = 94
Number of neutrons contained by plutonium = 150
Total charge on nucleus, Q = Number of electrons × charge on an electron
or
Q = 94 × 1.6 × 10⁻¹⁹ C
Distance between the nucleus and the electron, r = 0.563 × 10⁻¹² m
Now,
the force is given as;
[tex]F=\frac{kQq}{r^2}[/tex]
where,
k is the Coulomb's constant = 9 × 10⁹ Nm²/C²
q is the charge on the electron
on substituting the respective values, we get
[tex]F=\frac{9\times10^9\times94\times1.6\times10^{-19}\times1.6\times10^{-19}}{(0.563\times10^{-12})^2}[/tex]
or
F = 6.83 × 10⁻² N
