What is the chemical He, Fe and Au

He=helium
Fe=ferrum (latin for iron)
Au= Aurum (latin for gold)

Fe - Iron

Iron Atomic Number: 26
Iron Discovery: Known since prehistoric time
Electron Configuration: [Ar]4s23d6
Word Origin: Latin ferrum; Anglo-Saxon iron

Au- Gold

Atomic Number: 79
Symbol: Au
Discovery: known since prehistoric time
Electron Configuration: [Xe]6s14f145d10
Word Origin: Sanskrit Jval; Anglo-Saxon gold; meaning gold - also Latin aurum, shining dawn

He- Helium

Helium Atomic Number: 2
Helium Symbol:
Helium Discovery: Janssen, 1868, some sources say Sir William Ramsey, Nils Langet, P.T. Cleve 1895
Helium Electron Configuration: 1s2
Word Origin: Greek: helios, sun. Helium was first detected as a new spectral line during a solar eclipse.