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Q.27

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1115

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Short Answer

I The allowed energies of a simple atom are

a. Draw the atom's energy-level diagram. Label each level with the energy and the quantum number.

b. What wavelengths appear in the atom's emission spectrum?

c. What wavelengths appear in the atom's absorption spectrum?

a) picture

b)

c)

See the step by step solution

Step by Step Solution

part (a) step 1 : Given information

part (b) step 1 : Calculation

We can start with expression for energy of the photon

(from atom's energy-level diagram)

Because of simplicity, we will continue to use the following tags:

part (c step 1 : Calculation

On the same way we can find wavelengths in atom's absorption spectrum

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