Element Electron Orbitals/Emission Spectrum Common Compound(s)/Application(s)
8
Oxygen (O)
~/All Aerobic Life on Earth Depend on it, All Fuels Depend on it to Combuse, Some 46% of the Earth's Crust is Oxygenic Compounds (Oxides), Water (H2O) covers 70% the surface of the Earth.
16
Sulfur (S)
~ Dioxide (SO2)/Food Preservative (in Wine & Dried Fruits), Bleach (for Textiles & Paper)
Sulfuric Acid (H2SO4)/Phosphate Production (for Plants), Metal Treatment (to Remove Rust)
Penicillin (C16H18N2O4S)/Antibiotic
~/Soil pH Maintenance
34
Selenium (Se)
~/Photocopying, Light Sensor, Shampoo (for Controlling Dandruff)
52
Tellurium (Te)
~ Suboxide (Te-O-Pd)/CD and DVD Rewritable Layer
84
Polonium (Po)
~/Antistatic Brushes (in Photographic Film)

Group 16 Elements