Final answer:
The question inquires about the gravitational force between a proton and an electron at 1 angstrom (Å) separation. The calculation involves Newton's law of universal gravitation, but it's essential to note that this force is negligible when compared to the electrostatic force between such particles.
Step-by-step explanation:
The question asks for the magnitude of the gravitational force of a proton on an electron when they are separated by a distance of 1 angstrom (1 Å or 10-10 meters).
To solve this, you would use Newton's law of universal gravitation, which states that the force of gravity between two particles is proportional to the product of their masses and inversely proportional to the square of the distance between them. The formula is given by F = G * (m1 * m2) / r2, where F is the gravitational force, G is the gravitational constant (6.67 × 10-11 N·m2/kg2), m1 and m2 are the masses of the two particles, and r is the separation distance.
However, the gravitational force between an electron and a proton is extremely small compared to the electrostatic force, as evidenced by discussions in physics education about the Coulomb force being much larger than the gravitational force between common particles.