Question

In what form noble gases occur in nature?

Answer 1

All the noble gases are present in Earth's atmosphere and, except for helium and radon, their major commercial source is the air, from which they are obtained by liquefaction and fractional distillation. Most helium is produced commercially from certain natural gas wells.

Answer 2

The six noble gases are found in the atmosphere in ____ free State.
They are extracted for commercial purposes by fractional distillation.Noble gases have also been detected on the earth's crust and in meteorites.They exist as monatomic atoms which means that there molecule consists of a single atom apiece. These are the by-products of long time decay of radioactive elements on earth's crust.