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The study of molecules by molecular physics and theoretical chemistry is largely based on quantum mechanics and is essential for the understanding of the chemical bond. The simplest of molecules is the hydrogen molecule-ion, H 2 + , and the simplest of all the chemical bonds is the one-electron bond.
The weak interaction is responsible for beta decay. The exchange particles for the weak interaction are the W+ , the W-and the Z0. Consider Î² decay. n â p. We can describe the process as follows. A neutron changes into a proton by emitting a W - , which quickly decays into an electron and an antineutrino.ote: that in some reactions quarks can be created in quark-antiquark pairs, but the net flavour of quarks before and after is unchanged as they created pairs cancel. Another example of the weak interaction is the interaction between a proton and an electron called electron capture.