How Does Electric Force Compare to Gravitational Force in a Simple Atom?

[Dell]

a simple atom is comprised of one electron and one proton, with a distance of R=0.5*10^-10m between them

1) what is the electric force between them

F=K(qq)/r² = 28.8N
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2)how much smaller than the electric force is:
a) the gravitational force of the electron
b) the gravitational force of the proton

are the 2 gravitational forces not the same? is the force not equal to G(m_pm_e)/R² for both of them?

 

[Doc Al]

a simple atom is comprised of one electron and one proton, with a distance of R=0.5*10^-10m between them

1) what is the electric force between them

F=K(qq)/r² = 28.8N

Better double check your arithmetic. 28.8N is huge (for atomic particles).

2)how much smaller than the electric force is:
a) the gravitational force of the electron
b) the gravitational force of the proton

This is worded strangely. Perhaps they meant the gravitational force on the particles.

are the 2 gravitational forces not the same? is the force not equal to G(m_pm_e)/R² for both of them?

Right.