Three nuclear growth patterns are discussed that provided the first clues that made it possible to decipher nuclear structure.
The three patterns are
These patterns resemble the addition of precise parts to a regular structure and adding these parts in a specific order so that a very well defined structure is assembled. These growth patterns provided the first clues that made it possible to decipher nuclear structure.
How growth of stable nuclei occurs becomes obvious when these three nuclear growth patterns are examined plus why growth occurs along the Valley of Stability from one element or isotope to the next. This suggest that rather than just a few structure closures at the magic numbers there are many closures along the path of stability.
Understanding this path and how it grows is significant and is the key to understanding nuclear structure.
THE DEUTERON STEP is the first primary method used to build stable nuclei for elements lighter than oxygen. The deuteron step adds neutrons and protons alternatively to form the next stable nucleus.
The only part of the path of stability where the deuteron step occurs is between hydrogen and oxygen, see graph below.
Example: the Deuteron Step as it exists between boron and oxygen is as follows:
Carbon consists of three alpha particles and completes the first ring of the nuclear core.
There is a deuteron step switch between helium4 and lithium6, thus there is no element or isotope with and “A” of 5. For "A" of 8 is another unsupportable isotope number.
The nuclear structure from hydrogen to boron is very interesting especially for beryllium.
These processes are explained in detail in the section, hydrogen1 to carbon12.