Is it true the atoms in sulphur liquid are the same as the atoms in solid sulphur?

Yes, it is true that the atoms in liquid sulphur are the same as the atoms

in solid sulphur.

Also, if you can heat it past 832°F, it'll boil, and you'll have sulphur vapor.

Those atoms are also the same.

In any one of its three physical phases, you can also spell it as "sulfur"

without changing the nature of its atoms.