3) An electron within a hydrogen atom absorbs a photon and jumps from n =1 to n 4. It then relaxes from n 4 to n 2 and emits a photon in the process. a) What is the frequency of the first photon (i.e. the one it absorbed)? What type of electromagnetic radiation is it? b) What is the wavelength of the photon that is emitted in meters? What type of electromagnetic radiation is it? If it is in the visible spectrum, what color of light would it be?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Exercise 3**

An electron within a hydrogen atom absorbs a photon and jumps from \( n = 1 \) to \( n = 4 \). It then relaxes from \( n = 4 \) to \( n = 2 \) and emits a photon in the process.

**a)** What is the frequency of the first photon (i.e., the one it absorbed)? What type of electromagnetic radiation is it?

**b)** What is the wavelength of the photon that is emitted in meters? What type of electromagnetic radiation is it? If it is in the visible spectrum, what color of light would it be?
Transcribed Image Text:**Exercise 3** An electron within a hydrogen atom absorbs a photon and jumps from \( n = 1 \) to \( n = 4 \). It then relaxes from \( n = 4 \) to \( n = 2 \) and emits a photon in the process. **a)** What is the frequency of the first photon (i.e., the one it absorbed)? What type of electromagnetic radiation is it? **b)** What is the wavelength of the photon that is emitted in meters? What type of electromagnetic radiation is it? If it is in the visible spectrum, what color of light would it be?
**1) Understanding Power and Photonic Energy Conversion**

The watt is a unit of power, equivalent to 1 joule per second.

**Question:**
If a single solar panel can generate 125 watts of power from blue light (\(\lambda = 450 \text{ nm}\)) alone, how many photons of blue light will strike the panel over the course of 10 minutes (assuming 100% of the photonic energy is converted to electrical power by the panel)?

---

**2) Alpha Particles and Radiation**

An alpha particle consists of two protons and two neutrons with no electrons (essentially \(\text{He}^{2+}\)). It is one of the four major types of radiation (the others being beta, electromagnetic, and neutron). It has a mass of around \(6.642 \times 10^{-24}\) grams.

**Question:**
If an alpha particle travels at \(1.80 \times 10^7\) meters per second, what is its wavelength in meters?
Transcribed Image Text:**1) Understanding Power and Photonic Energy Conversion** The watt is a unit of power, equivalent to 1 joule per second. **Question:** If a single solar panel can generate 125 watts of power from blue light (\(\lambda = 450 \text{ nm}\)) alone, how many photons of blue light will strike the panel over the course of 10 minutes (assuming 100% of the photonic energy is converted to electrical power by the panel)? --- **2) Alpha Particles and Radiation** An alpha particle consists of two protons and two neutrons with no electrons (essentially \(\text{He}^{2+}\)). It is one of the four major types of radiation (the others being beta, electromagnetic, and neutron). It has a mass of around \(6.642 \times 10^{-24}\) grams. **Question:** If an alpha particle travels at \(1.80 \times 10^7\) meters per second, what is its wavelength in meters?
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