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Using the Bohr’s model calculate the speed of the electron in ahydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbitalperiod in each of these levels

Question

Using the Bohr’s model calculate the speed of the electron in ahydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbitalperiod in each of these levels

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Solution

To calculate the speed of the electron in a hydrogen atom using Bohr's model, we can use the formula:

v = (Z * e^2) / (4 * π * ε₀ * n * ħ)

where:

  • v is the speed of the electron
  • Z is the atomic number (which is 1 for hydrogen)
  • e is the elementary charge (1.602 x 10^-19 C)
  • π is a mathematical constant (approximately 3.14159)
  • ε₀ is the vacuum permittivity (8.854 x 10^-12 C^2 / N m^2)
  • n is the principal quantum number (1, 2, or 3)
  • ħ is the reduced Planck's constant (1.055 x 10^-34 J s)

Let's calculate the speed of the electron for each of the given levels:

For n = 1: v₁ = (1 * (1.602 x 10^-19 C)^2) / (4 * 3.14159 * 8.854 x 10^-12 C^2 / N m^2 * 1 * 1.055 x 10^-34 J s)

For n = 2: v₂ = (1 * (1.602 x 10^-19 C)^2) / (4 * 3.14159 * 8.854 x 10^-12 C^2 / N m^2 * 2 * 1.055 x 10^-34 J s)

For n = 3: v₃ = (1 * (1.602 x 10^-19 C)^2) / (4 * 3.14159 * 8.854 x 10^-12 C^2 / N m^2 * 3 * 1.055 x 10^-34 J s)

To calculate the orbital period in each of these levels, we can use the formula:

T = (2 * π * r) / v

where:

  • T is the orbital period
  • r is the radius of the orbit (which can be calculated using the Bohr radius formula: r = (0.529 x 10^-10 m) * n^2)
  • v is the speed of the electron

Let's calculate the orbital period for each of the given levels:

For n = 1: r₁ = (0.529 x 10^-10 m) * 1^2 T₁ = (2 * 3.14159 * r₁) / v₁

For n = 2: r₂ = (0.529 x 10^-10 m) * 2^2 T₂ = (2 * 3.14159 * r₂) / v₂

For n = 3: r₃ = (0.529 x 10^-10 m) * 3^2 T₃ = (2 * 3.14159 * r₃) / v₃

By plugging in the values and performing the calculations, we can determine the speed of the electron and the orbital period for each of the given levels in the hydrogen atom.

This problem has been solved

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