>>12537474>>125374101Hydrogen has a lot of repulsive force
You need 4H to create Helium
Simple addition says that they have a combined atomic mass of 4.032
But He is 4.002602 u
0.029398 mass is missing. This is because Hydrogen is 1 proton + 1neutron. Proton is lighter than neutron but has a lot of repulsive force whereas the neutron does not repel
Helium is 2 proton 2 neutron.
When 4 protons get fused, the repulsive forces from protons is enough to turn 2 protons into neutron. Because E=mc^2, energy is mass and can convert the repulsive force into added mass to convert the proton into neutron. The instability of the isotope becomes stable by release what makes it unstable
The process end up converting the repulsion into thermal and vibrational energy
You can make this process more efficient by using deuterium (hydrogen with 1 neutron) or tritium (2 neutrons)
In this case, entire neutrons can get repeled at high velocity
