Which of the following series is represented by Z?

Explanation

In atomic physics, the Lyman, Balmer, Brackett, and Paschen series are spectral series that describe the emission or absorption of photons by atoms when electrons transition between different energy levels. These series are named after the scientists who discovered and studied them.The Paschen series specifically corresponds to electron transitions in which the electron jumps from higher energy levels to the third energy level (n=3) in a hydrogen-like atom. These transitions result in the emission or absorption of photons in the infrared region of the electromagnetic spectrum. The wavelengths in the Paschen series are longer than those in the Balmer and Lyman series.