Helium has completely filled orbitals, is stable and is not reactive. Hence they exist as mono atomic
Helium is mono atomic.
Helium is mono atomic
Neither. Helium is a noble gas mono atomic element.
Helium is found as a mono atomic element. It is not found as a mineral.
helium is an element, it is a mono atomic molecule, He2 .
Helium is a mono atomic chemically inert gas and is found only in the atmosphere.
The noble gases, e.g. helium, argon, neon, etc. are monoatomic gases.
It is a colorless, odorless, tasteless, non-toxic, inert, mono atomic gas at STP
None. Helium has completely filled orbitals it is stable and chemically inert (non-reactive). So, helium exists as mono atomic and not as a diatomic species.
A molecule of helium is composed of two helium atoms.
They have completely filled valence electrons, hence are stable, chemically inert. So they exist as mono atomic species and not as molecules
Helium is a noble gas with an atomic number of 2, meaning it has 2 protons in its nucleus. This atomicity indicates that each helium atom has a single electron cloud surrounding its nucleus. Helium typically exists as a monatomic gas under standard conditions.