Changes in the appearance of emission and absorption spectrums are caused by the activities of "electrons".
What is electrons?
A subatomic particle with a negative charge would be called an electron. A subatomic particle with a negative charge was called an electron. This could either be free or bonded to an atom's nucleus. Atomic electrons are organized into spherical shells with different radii to represent different energy levels. The energy held within an electron increases with the size of the spherical shell.
What is emission?
When electrons reach their previous energy levels, they emit. When electrons absorb energy, they increase their energy and then go to higher levels.
The material's atomic and molecular makeup has a major impact on the absorption spectrum. At a frequency that corresponds to the energy distinction among two quantum state configurations of the molecules, radiation has much more likely to be absorbed.
Therefore, changes in the appearance of emission and absorption spectrums are caused by the activities of "electrons".
Hence, the correct answer will be option (c).
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