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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

In what region of the electromagnetic spectrum for hydrogen is the Lyman series of lines found? The Balmer series?

Interpretation Introduction

Interpretation: The region where Lyman series and Balmer series lies in the electromagnetic spectrum has to be identified.

Concept introduction:

  • Electronic transitions that take place in excited H atom is,
  1. i. Lyman series: electronic transitions take place to the n=1 level and it is in ultraviolet region.
  2. ii. Balmer series: electronic transitions take place from n>2 to the n=2 level and it is in visible region.
  3. iii. Ritz-Paschen series: electronic transitions take place from n>3 to the n=3 level and it is in infrared region.
  4. iv. Brackett series: electronic transitions take place from n>4 to the n=4 level.
  5. v. Pfund series: electronic transitions take place from n>5 to the n=5 level
  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.
  • Visible radiation lies in the wavelength of 400nm to 700nm whereas ultraviolet radiation lies in the region between 100nm and 400nm
Explanation

The region can be identified from the given figure

In Lyman series, electronic transitions take place to the n=1 level and it is in ultraviolet region of electromagnetic spectrum and ultraviolet radiation lies in the region between 100nm and 400nm

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