Here is some useful NPC info ...copy and
paste and pass it along-

Galente - Magnetometric
Mimatar - Ladar
Caldari - Gravimetric
Amar - Radar

Damage type to protect against:

Guristas - Kinetic & Thermal
Serpentis - Kinetic & Thermal
Mordus - Kinetic & Thermal
Blood - EM & Thermal
Sansha - EM & Thermal
Angel - Explosive, kinetic, Thermal & EM
Mercenary - Kinetic, EM, Thermal & Explosive

Main Damage type to shoot at the enemy:

Angel Cartel - Explosive - (Gist, Arch, Domination)
Blood Raiders - Electromagnetic/Thermal - (Corpus, Elder, Dark)
Caldary Navy - Kinetic
EoM - Kinetic
Guristas - Kinetic - (Pith, Dire, Dread)
Mercenary - Thermal
Mordu's Legion - Thermal/Kinetic
Sansha - Electromagnetic/Thermal - (Centus, Loyal, True)
Serpentis - Thermal/Kinetic - (Core, Guardian, Shadow)
The Syndicate - Kinetic/Thermal
Thukker Tribe - Explosive