ଛାଞ୍ଚ:Periodic table (noble gases)

Noble gases
halogens ←    → alkali metals
IUPAC group number 18 Name by element helium group or neon group Trivial name Noble gases, aerogens CAS group number (US) VIIIA old IUPAC number (European) Group 0
↓ Period
1	Helium (He) 2
2	Neon (Ne) 10
3	Argon (Ar) 18
4	Krypton (Kr) 36
5	Xenon (Xe) 54
6	Radon (Rn) 86
Legend primordial element element by radioactive decay Atomic number color: red=gas

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