Helyum, neon, argon, kripton, ksenon ve radon soy gazlardır. - Helium, neon, argon, krypton, xenon and radon are noble gases.
Helyum, neon, argon, kripton, ksenon ve radon soy gazlardır.
Helium, neon, argon, krypton, xenon and radon are noble gases.