Việt
hành tinh điện tử
Anh
planetary electrons
primary electron
outer-shell electron
Đức
Elektron der Aussenschale
äußeres Elektron
Pháp
électron extérieur
outer-shell electron,planetary electrons /SCIENCE,ENG-ELECTRICAL/
[DE] Elektron der Aussenschale; äußeres Elektron
[EN] outer-shell electron; planetary electrons
[FR] électron extérieur
planetary electrons, primary electron