What is the initial atomic process caused by high-energy photons striking gas atoms in an emission nebula?

Answer

Ionization, where an electron is knocked completely free

The process begins when a sufficiently energetic photon strikes a gas atom, causing an electron to be ejected entirely from the nucleus, creating an ion.

What is the initial atomic process caused by high-energy photons striking gas atoms in an emission nebula?

#Videos

What Makes Emission Nebulae Glow In Distinct Colors? - YouTube

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