Calculating energy change (rydberg?)

In summary, the conversation is about a question regarding the calculation of energy change when an electron in an atom is excited by heat and produces electromagnetic radiation with a specific wavelength. The individual asking for help is struggling with understanding atomic physics and is seeking assistance. The solution involves using an equation that relates energy and wavelength.
  • #1
wuddalooo
1
0
Ok, so here's the question:
An electron in an atom is excited by heat. In the process electromagnetic radiation of wavelength 1x10^-7 is produced. Calculate the energy change.

Do not get this at all in any way. I have to take an atomic physics module but I really really can't do any of it... ...HELP!
 
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  • #2
Hi wuddalooo, welcome to PF!

wuddalooo said:
Ok, so here's the question:
An electron in an atom is excited by heat. In the process electromagnetic radiation of wavelength 1x10^-7 is produced. Calculate the energy change.

Do not get this at all in any way. I have to take an atomic physics module but I really really can't do any of it... ...HELP!

You don't really need to know much about atoms to answer this question. Start from "electromagnetic radiation of wavelength 1x10^-7 is produced" (with proper units, which are missing here) and convert that to energy.
 
  • #3
First off, this post should have been made in the homework help section. Secondly, there is a very simple equation that relates energy in joules (E) to wavelength (λ). Scan through those diligently taken notes of yours, try to find those two symbols, and get back to us when you've found it :rolleyes:.
 

1. How is energy change calculated using the Rydberg formula?

The Rydberg formula, also known as the Rydberg-Ritz combination principle, is used to calculate the energy change of an electron transitioning between energy levels in an atom. It is represented as ∆E = R(1/n1^2 - 1/n2^2), where R is the Rydberg constant (1.097 x 10^-2 nm^-1) and n1 and n2 are the initial and final energy levels, respectively.

2. What is the significance of the Rydberg constant in energy change calculations?

The Rydberg constant is a fundamental constant in quantum mechanics and is used to calculate the energy levels of electrons in an atom. It is also used to determine the wavelengths of spectral lines emitted by atoms, which can give insight into the structure and behavior of atoms.

3. Can the Rydberg formula be used to calculate energy change for any atom?

Yes, the Rydberg formula can be used to calculate energy change for any atom, as long as the atom has discrete energy levels. However, it is most commonly used for hydrogen atoms, as they have the simplest energy level structure.

4. How does the Rydberg formula relate to the Bohr model of the atom?

The Bohr model of the atom is based on the idea that electrons orbit the nucleus in specific energy levels. The Rydberg formula is derived from the Bohr model and helps to explain the relationship between these energy levels and the spectral lines emitted by atoms.

5. Can the Rydberg formula be used to calculate energy change in molecules?

No, the Rydberg formula is only applicable to single atoms. Molecules have more complex energy level structures and require different equations to calculate energy change. However, the Rydberg formula can be used to calculate energy change for diatomic molecules in certain cases.

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