Answer:
the one right behind 600 and the one in between 600 and 700
Explanation:
The presence of elements in the atmosphere of the stars are indicated by spectral lines
Reason:
When electrons within an atom transitions towards or farther from the nucleus, they cause electromagnetic radiation energy to be produced or absorbed.
At high temperatures, visible absorption lines due to the transition of electrons in the second energy level of hydrogen can be seen. The visible spectral lines of hydrogen can be used for the identification of hydrogen
The periodic table elements produce unique spectral lines with which astronomers can identify the content of the stars based on the spectral lines that can be found in the spectrum of the stars
The parts of the spectrum that show what elements are present in the stars is the spectral lines which consists of absorption and emission spectra
The elements present in a star are indicated by comparing the star's line spectrum to the line spectrum of known elements
Learn more about spectral lines here:
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