When is the absorption spectrum of an electron generated?

Which of the following best explains the presence of discrete lines in atomic emission spectra?

Which scientific phenomenon allows scientists to determine the chemical composition of stars?

Why do different types of atoms (elements) give off or absorb different spectral lines?

How do atoms emit light in the context of their emission spectrum?

Which of the following statements best describes the emission spectrum of hydrogen?

What causes the emission spectrum of an element?

When a noble gas is heated and the emitted light is passed through a prism, what is observed?