Is 15F a sd shell nucleus?

In summary, there is a distinction between open and close sd-shell nuclei, and the last proton and neutron in a sd shell nucleus can both lie in the sd shell. This is demonstrated by the example of 15F, where the last proton is in the 1d5/2 orbit and the last neutron is in the 1p3/2 orbit. The concept of open and close sd-shell nuclei can provide a hint towards determining if a nucleus can be considered a sd shell nucleus.
  • #1
amyy
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TL;DR Summary
In nuclear shell model, the shell where the last proton or neutron lies is important. It relates to the property of the nuclei. But what is the definition of sd shell nuclei?
If we call a nucleus a sd shell nucleus, should its last proton and last neutron both lie in the sd shell or just one lies in the sd shell?
For example, 15F, whose proton number is 9 and neutron number is 6. Then the last proton lies in the 1d5/2 orbit and the last neutron lies in the 1p3/2 orbit. So can we call 15F the sd shell nucleus? Thanks a lot!
 
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  • #2
There is a distinction between open and close sd-shell nuclei, which might give you a hint towards the answer :)
 
  • #3
malawi_glenn said:
There is a distinction between open and close sd-shell nuclei, which might give you a hint towards the answer :)
I get your point. Thanks very much.
 

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