Quadratic Polynomials (span 9)
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This section is referring to wiki page-31 of orgs section-3 that is inherited from the spin section- by prime spin-42 and span- with the partitions as below.
The exchange interaction is a quantum mechanical process that only happens between identical particles in chemistry and physics. The energy produced when two or more electrons with the same spin swap locations in a subshell's degenerate orbitals .
On the instinctual level, people may internally stress and externally express the need to protect themselves (self-preservation), to connect with important others or partners (sexual), or to get along or succeed in groups (social).