Helium He
  colorless noble gas, 2nd most abundant
  atomic numb 2
  atomic mass 4.003
  electron shell 2
  melt point −272.20°C
  boil point −268.928°C
  Stable isotopes ³He ⁴He

Neon Ne
  colorless inert monatomic gas
  atomic numb 10
  atomic mass 20.18
  electron shell 2,8
  melt point −248.59°C
  boil point −246.046°C
  Stable isotopes 20,21,22

Argon Ar
  colorless inert monatomic gas
  atomic numb 18
  atomic mass 39.948
  electron shell 2,8,8
  melt point –189.34°C
  boil point −185.848°C
  density (STP) 1.784 g/L
    liquid 1.3954 g/cm³
  Heat of fusion: 1.18 kJ/mol
  Heat of vaporization: 6.53 kJ/mol
  heat capacity: 20.85 J/(mol·K)
  Stable isotopes 36,38,40

Krypton Kr
  colorless odorless noble gas
  atomic numb 36
  atomic mass 83.798
  electron shell 2,8,18,8
  melt point −157.37°C
  boil point −153.415°C
  density 3.749 g/L
    liquid 2.413 g/cm³
  Heat of fusion: 1.64 kJ/mol
  Heat of vaporization: 9.08 kJ/mol
  heat capacity: 20.95 J/(mol·K)
  Stable isotopes 79,80,82,83,84,86

Xenon Xe
  colorless, dense, noble gas
  atomic numb 54
  atomic mass 131.29
  electron shell 2,8,18,18,8
  melt point −111.75°C
  boil point −108.099°C
  density 5.894 g/L
    liquid 2.942 g/cm³
  Heat of fusion: 2.27 kJ/mol
  Heat of vaporization: 12.64 kJ/mol
  heat capacity: 21.01 J/(mol·K)
  Stable isotopes 124,26,28-32,34

Radon Rn 86 222 2,8,18,32,18,8

Oganesson Og 118 294 2,8,18,32,32,18,8