When the atom's electrons step down to lower energy levels in a thin cloud of hot gas, what is produced?

The correct answer is an emission line spectrum.

Explanation:

When the electrons are excited to the higher energy level, the energy is absorbed in this case.

When the electrons in the atom step down to lower energy levels in a thin cloud of hot gas then the radiation will emit.

The electron will lose energy in this case in the form of radiation. There will be an emission line spectrum.

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.