Introductory Quantum Physics/Mechanics Homework Help

In summary: These are only used for important messages.In summary, the letter "l" (lowercase L) indicates the sub-shell and "m (sub) l" the location of the orbits in outer space. The shells are numbered from 1 to 8 with 1 being the most energetic and 8 being the least. The letter "l" represents the electron's shell number and "m (sub) l" the location of the orbit in outer space.
  • #1
Astronomer1
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Hi everyone. In my class we are now learning about Quantum theory & the whole "shananigans". Yesterday we talked about orbitals (s, p, d, f, g). In one of the classes my Physics teacher said that the letter "l" (lowercase L) indicates the sub-shell and "m (sub) l" the location of the orbits in outer space.

I get the m (sub) l, but I don't know what the "l" is. What does he mean by the sub-shell?

From now on, if it's alright with the Admin on here, I will be posting all my questions in this thread, instead of starting a new one each time (hence, the thread title). Thank you.
 
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  • #2
There are several different ways that an electron can have a particular kinetic energy state.
These ways are represented by the "l" quantum number. Off the units, the l number is associated with orbital angular momentum.

"shell" is the chemistry term for an energy level.
electrons in the same shell, but with different angular momentum, are said to be in different "sub-shells".

It is generally unhelpful to ask all your questions in a single thread - it means that your question is unlikely to find the right people to answer it. It is considered "best practice" to post separate questions in separate threads.
It is also a good idea to return to questions which have been answered to give feedback on the answers received.
Please review the rules of the forum and online netiquette guides.
 
  • #3
Astronomer1, sorry, but a new thread needs to be started for each new problem. This will avoid confusion for the members that are willing to help as well as get more people to see each new problem. If you keep adding new problems to the same thread, members are likely to think it's the same old problem and not even bother looking.

In other words. NO.

Be sure that you use the template that is provided with each new thread and that all three sections are filled out, especially the last part where you must show everything you have already done to solve the problem yourself, without this members cannot tell what you have already tried and where you are running into problems.

Also, please do not use special font sizes or colors.
 
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1. What is quantum physics/mechanics?

Quantum physics/mechanics is a branch of physics that deals with the behavior of matter and energy on a very small scale, such as atoms and subatomic particles. It explains how particles behave and interact with each other at the quantum level, which is different from the classical physics laws that govern larger objects.

2. Why is quantum physics/mechanics important?

Quantum physics/mechanics is important because it helps us understand and explain the fundamental principles of how our universe works. It has led to the development of many technologies such as transistors, lasers, and MRI machines. It also plays a crucial role in fields like chemistry, biology, and engineering.

3. What are the key principles of quantum physics/mechanics?

Some key principles of quantum physics/mechanics include wave-particle duality, uncertainty principle, superposition, and entanglement. These principles describe the behavior of particles at the quantum level and help us understand their interactions and properties.

4. How is quantum physics/mechanics applied in real life?

Quantum physics/mechanics is applied in various technologies such as transistors, lasers, and computers. It also plays a crucial role in fields like telecommunications, cryptography, and energy production. Additionally, it is used in medical imaging techniques such as MRI and PET scans.

5. What are common misconceptions about quantum physics/mechanics?

One common misconception about quantum physics/mechanics is that it only applies to the microscopic world. While it is true that it primarily deals with small particles, its principles can also be applied to larger systems. Another misconception is that quantum mechanics is purely theoretical and has no practical applications, which is not true as it has numerous real-life applications. Finally, some people believe that quantum mechanics is only relevant to scientists and has no impact on the general public, but its principles affect our daily lives in many ways.

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