one
Helium has two electrons, and each electron occupies an orbital. Therefore, in a helium atom, there are two orbitals, one for each electron.
Helium has completely filled orbitals and hence is unreactive.
Helium has completely filled orbitals, hence it is stable and inert.
No. helium is chemically inert as it has completely filled orbitals
No. helium has completely filled orbitals and does not react with anything else.
How many atoms / electron clouds does helium have ?
Helium has completely filled valence orbitals, is stable and chemically inert.
Helium doesn't combine with oxygen. Helium is chemically inert because it has completely filled valence orbitals.
helium has completely filled orbitals and does not react with any element.
Helium is more stable, because it has completely filled valence orbitals.
both have complete filled valence orbitals
Helium has completely filled orbitals / energy levels and is chemically inert. So it has no chemically property.