Newton's law of Universal Gravitation states that any two bodies in the universe attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
$$F = \frac{GmM}{R^2}$$
$F$ is the force of gravity.
$m$ is the light mass.
$M$ is the heavy mass.
$R$ is the distance.
$G$ is a gravitational constant = 6.67384 $\times$ 10-11 m3 kg-1 s-2.
From the above mentioned equation the force of gravity $F$ becomes stronger if any of the mass increases, since nerds love to treat elementary particles (they have mass) as point-like if we reduce the distance $R$ to $0$ we will get $F = \infty$ (sound weird).
Question
Can't I apply Newton's laws of universal gravitation at quantum level? Or do these particles actually have radius?
