Element 86

Radon (Rn)

86

Rn

radon

Nonmetal · p block · group 18, period 6

Electron configuration: $[\mathrm{Xe}]\,6s^{2}\,4f^{14}\,5d^{10}\,6p^{6}$
Unpaired electrons: 0 (diamagnetic)
Valence electrons: 8
Molar mass: 222 g/mol
Electronegativity: —
Atomic radius: 150 pm
First ionization energy: 1037 kJ/mol
Electron affinity: anion not bound

Practice

Practice radon

No course questions are about radon specifically, but these lessons cover what you need.

Where it comes up in the course