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May28-09, 09:13 AM
Sci Advisor
P: 1,266
K - shell capture

Quote Quote by Idoubt View Post
I thought the size on the nucleus was so small compared to an orbital that there is a node between the nucleus and the first shell electron?
There is no node for s shell orbitals. The weak force is responsible for the e+p-->n+neutrino interaction. The rate is proportional to |\ps|^2 at the origin, which is nonzero.