Element Electron Orbitals/Emission Spectrum Common Compound(s)/Application(s)
7
Nitrogen (N)
Proteins, Nucleic Acid/Essential for Life
Silicon Nitride (Si3N4)/Cutting Tools
Ammonia (NH3)/Fertilizers
Ammonium Nitrate (NH4NO3)/Fertilizers, Explosives, Plastics
Nitric Acid (HNO3)/Explosives
Nitric Acid + Glycerol (Nitroglycerine)/Explosive
Nitroglycerine + Clay/Dynamite
Sodium Azide (NaN3)/Automobile Airbags
N13 (Half Life = 10 mins)/PET Scan
Nitrite (NO2-) Compounds/Food preservative
15
Phosphorus (P)
Phosphate (PO43-) Compounds/Fertilizers, DNA
Calcium Phosphate (Ca3(PO4)2/Skeleton
White ~/Incendiary Bomb
Red ~/Match
33
Arsenic (As)
Arsenious Oxide (As2O3)/Insectivide
Gallium Arsenide (GeAs)/LED
51
Antimony (Sb)
~ + Lead/Hardened Bullets
~ Trisulfide (Sb2S3)/Safety Match, Pigment
83
Bismuth (Bi)
~ Germanate (Bi4Ge3O12)/Scintillation Detectors
~ Subnitrate Bi5O(OH)9(NO3)4
/Gastrointestinal Disorder Treatment
~ Metal Alloys/Casts and Molds
~ + Lead + Tin + Cadmium/Electric Fuses, Fire Alarms and Sprinkler Systems

Group 15 Elements