There have been various forum threads about elementals stats, but none worth even a mention.
So, the Defiance weapons wiki page states the following elemental bonuses:
Corrosive - ?
Incendiary - Sets alight to the enemy.
Siphon - Attaches to enemies and siphons away health.
Radiation - Breaks shields and makes enemies more susceptible to damage.
Electrical - Can stun your enemies or disable the HUD of other Ark Hunters.
Biological - Slows the movements of enemies by sticking a material to their feet
Ignoring the "default" info on each element, we need some clarifications for each of these, from devs if possible, to remove any doubt.
Here's a short Q&A scheme to order things:
a) How is it visually displayed? What color?
b) What effect/debuff does it apply to target? What buff does it apply to shooter, if any?
c) Any proc chance percentage and min-max damage bonus?
d) Any other detail worth mentioning?
e) Mention how this elemental bonuses affect pvp...
If devs take some time to answer to these, I think this would be a great resource to sticky. You can answer here or update that wiki page with some definitive details.
P.S. Please keep this thread clean and objective.