According to Yukawa's meson theory of nuclear forces, the rapid exchange of which particles explains — Nuclear Chemistry and Radioactivity Chemistry Question

💡 Solution & Explanation

Meson theory postulates that neutrons and protons are held together by a rapid exchange of $\pi$ -mesons. The attractive forces between unlike nucleons (p and n) are caused by the oscillation of charged pi-mesons ($\pi^+$ or $\pi^-$). The exchange of neutral mesons ($\pi^0$) is responsible for forces between like particles (p-p or n-n).