origin has given a good account as to what happens when falling into a BH. The term actually used is spaghettification caused by the difference in pull between ones feet and his head.
The larger a BH is of course, the less the effects of spaghettification caused by tidal gravity effects.
A galactic SMBH for instance, maybe able to be crossed with not much harm at all, until one got closer to the singularity.
??? Depends on the metallic content of the star from whence it formed.
And anyway, all elements as already mentioned, would be broken down into their most basic constituents...