Answer:
Neon is a noble gas
Step-by-step explanation:
It is important to note that the excitation energy of even the lowest excited states of noble gases is greater than the ionization energy of many atoms of other elements.
This is because, the electrons in a noble gas are contained in a filled shell with greater stability than the the atoms of other elements.
Hence, it becomes difficult to excite the neon atom to a higher energy level.
Recall that photons are emitted when atoms of elements return to ground state after being excited to higher energy level.
Since it is difficult to excite neon, it is also difficult to cause photons to be emitted from neon.