When is the absorption spectrum of an electron generated?

The atomic absorption spectra is created when light passes through gaseous elements and atoms

Answer;

A. when an electron in an atom is excited to a higher energy state

Explanation;Lines on the atomic spectrum are based on the electron transitions between energy levels, such that when an electron drops an energy level a photon is released resulting in an emission line and when an electron absorbs a photon and rises an energy level an absorption line is observed on the spectrum.Therefore; an absorption spectrum is a spectrum of absorption lines or bands  which occurs when electrons move to a higher orbit by absorbing energy. Each atom has a unique spacing of orbits and can emit or absorb only certain energies or wavelengths.

Is there a diagram/picture you can provide? it seems this question goes along with a

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic