Argon,
ArBromine,
Br Carbon,
C Chlorine,
Cl Fluorine,
F Helium,
He Hydrogen,
HIodine,
I Krypton,
Kr Neon,
Ne Nitrogen,
N Oxygen,
O Phosphorus,
P Radon,
Rn Selenium,
Se Sulfur,
S Xenon,
Xe 