The Positron

Unlike the electron, which exists as a stable, relatively inert particle in nature, positrons do not exist as independent particles. When they appear, it's always briefly.

However, they do exist, and we know that they have the same mass (inertia) as the electron. We can therefore safely conclude that they are identical but opposite to the electron. Instead of two negative and one positive quanta, the positron is composed of one negative and two positive quanta.

In light of the Velcro model, the electron is a ball made mainly up of hoops, and the positron is a ball made mainly up of hooks. Their surface structures are in other words a little more like that of the neutrino, which is an equal mix of both hoops and hooks.

This make the electron and positron somewhat less reactive than pure positive and negative quanta. This in turn explains why electrons are able to resist reactions, while single negative quanta are so reactive that they are hardly ever detected.

Coincidentally, this also explains the strange fact that no positrons are present as free particles. The reason for the absence of positrons is due to the fact that hooks are a tiny bit more reactive than hoops. Anyone who've played with Velcro knows that hooks have a small affinity to other hooks, while there is no affinity between hoops.

The hook covered positrons do not exist freely in nature because they always get entangled into more complicated structures due to the fact that they are slightly more reactive than electrons.

This is the reason why the positively charged nuclei of atoms are enormous structures, while the negatively charged electrons are minimal structures.

The non-existence of free positrons, and the odd disconnect in size between atomic nuclei and electrons can both be fully explained by the Velcro model.