The frequency and wavelength of light emitted by transition of electron and the region which it belongs is to be calculated. Concept introduction: Energy between two states is, Energy between the states ΔE = E final − E initial = − Rhc ( 1 n final 2 − 1 n initial 2 ) where, R = Rydberg constant h = Planck's constant c = speed of light n = Principal quantum number Planck’s equation, E = hν where, ν = frequency The energy increases as the wavelength of the light decreases. The frequency of the light is inversely proportional to its wavelength. ν = c λ where, c = speed of light ν = frequency λ = wavelength Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc. The wavelength of ultraviolet region lies in the region between 100 nm and 400 nm

BuyFind

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
BuyFind

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

Solutions

Chapter 6, Problem 21PS
Interpretation Introduction

Interpretation: The frequency and wavelength of light emitted by transition of electron and the region which it belongs is to be calculated.

Concept introduction:

  • Energy between two states is,

    EnergybetweenthestatesΔE=EfinalEinitial=Rhc(1nfinal21ninitial2)where,R=Rydbergconstanth=Planck'sconstantc=speedoflightn=Principalquantumnumber

  • Planck’s equation,

    E=where, ν=frequency

The energy increases as the wavelength of the light decreases.

  • The frequency of the light is inversely proportional to its wavelength.

  ν=cλwhere, c=speedoflightν=frequencyλ=wavelength

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.
  • The wavelength of ultraviolet region lies in the region between 100nm and 400nm

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