It was once thought that we were always as we are now, until science discovered that we evolved from animals over millions of years. Likewise, the particle model assumes that matter always was, but we now know that complex atoms came from simpler ones by the process of nucleosynthesis, that occurs in stars. The elements of the periodic table (Figure 4.21) wouldn’t exist without it, and neither would we, and just as life evolved based on survival, matter evolved based on stability.
QR4.6.1 Nuclei Evolved
QR4.6.2 Electron Waves
QR4.6.3 Electron Shells
