In book (Halliday Resnick Krane, 2nd Part, fifth edition), it's written that when you you put some charge in an isolated conductor, then within around $10^{-9}$ seconds the charges all go to the surface of the conductor, and there's no charge in the inside of the conductor. Even if you cut a hole from inside of the the conductor, then also there would be no net charge in the surface around the hole in the conductor.
The reasoning the apply is using Gauss law and somehow concluding that "the electric field in the conductor must zero everywhere inside it otherwise there would be some field and the particles would not be stationary".
I find this argument to be wrong. Suppose you take an isolated sphere, and in the center of the sphere, you put a negative charge of magnitude $-q$, and construct an hexagon with arbitrary distance centered at the negative charge, and put some positive charge on equal magnitude $+Q$ each vertice of the hexagon so that the entire system is in equilibrim (that such value of positive charge for which the system exists at equilibrium follows by "applying" intermediate value theorem on $Q = 0$ and $Q = \infty$).
Picutre as requested (red is the negative charge of magnitude $-q$ and blue are the positive charges of magnitude $Q$ such that the configuration is stable):
But then there's some charge at the inside of the conductor, so the net field is not zero, but the particles are stationary too! What's wrong with my arguement?