@InVasMani seriously no, that's not how black holes work at all. Their gravity is so strong that they bend spacetime to such an extreme degree that at the event horizon, the escape velocity exceeds that of light. Once inside the event horizon,
nothing can escape it, absolutely nothing. Below the event horizon, the gravity keeps getting ever stronger and is at a maximum at the mysterious singularity, where Einstein's theory of general relativity breaks down. Also, strong gravity significantly slows down time, so that at the EH, it stops completely compared to a distant observer.
It's nothing to do with chemistry and magnetism.
There's a theory that they emit hawking radiation, effectively a form of evaporation. This hasn't been conclusively proved yet, but seems likely from what we know about them.
Finally, all black holes are the same, from the tinyest microscopic one to solar system sized ones and beyond, ie their properties don't change with size.
If you want to argue any of this, remember that this all this is established science and not up for debate.
Wikipedia explains all this and much more.
en.wikipedia.org