The line intensity of a spectrum depends both on the abundance of a particular element andits temperature as well.

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The line intensity of a spectrum depends on the abundance of a particular element and its temperature. The more abundant the element is, and the hotter it is, the more intense its spectral lines will be. The line intensity of a spectrum is determined by the abundance and temperature of the element emitting the radiation. Higher temperatures lead to higher line intensities, while greater abundance also increases the intensity of spectral lines.

The Line Intensity of a Spectrum Depends Both on the Abundance