(c) [table] Gas | Abundance in air by volume(ppm) ; Helium | 5.2 ; Neon | 18.2 ; Argon | 93.4 ; Krypton | 1.1 ; Xenon | 0.09 [/table]
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.