(a) Use the Rydberg formula for atomic hydrogen to calculate the wavelength of radiation generated by the transition from n = 2 to n = 1.  

(b) What is the name given to the spectroscopic series to which this transition belongs?

(c) Use Table 1A.1 to determine the region of the spectrum in which the transition takes place.

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TABLE 1A.1 Color, Frequency, and Wavelength of Electromagnetic Radiation* Energy of photon/(10-19 J) Radiation type x-rays and y-rays ultraviolet visible light violet blue green yellow orange red infrared microwaves and radio waves Frequency/ (10¹4 Hz) ≥10³ 8.6 7.1 6.4 5.7 5.2 4.8 4.3 3.0 ≤10-3 Wavelength/nm ≤3 350 420 470 530 580 620 700 1000 ≥3 X 106 ≥10³ 5.7 4.7 4.2 3.8 3.4 3.2 2.8 2.0 ≤10-3