How to create projectiles using particle effects

I’m working on a game that uses energy and plasma projectiles. I want to know how I can use Unity’s particle effects in order to do this.

You can use a particle system to create the particles that come from the projectile and attach that system to a moving object representing the projectile itself, which actually gets shot/detects hits etc. There are numerous guides on how to do both these things in various ways, but your question is very vague so hard to give a specific answer to.