What is the molecular orbital configuration of He2?
The molecular orbital energy-level diagram shown in Figure 13 also applies (with changes of detail in the energies of the molecular orbitals) to the hypothetical species He2. However, this species has four valence electrons, and its configuration would be 1σ22σ2.
Is He2 possible?
Based on molecular orbital theory, He2 should not exist, and a chemical bond cannot form between the atoms. However, the van der Waals force exists between helium atoms as shown by the existence of liquid helium, and at a certain range of distances between atoms the attraction exceeds the repulsion.
Why He2 molecule is not possible?
He2 does not exist because it has filled octets and its valency is zero. Because it has no combining capacity, it exists as a monoatomic molecule like He. The electrical configuration of the helium atom is 1s2.
What is He2?
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Is He2 diamagnetic or paramagnetic?
paramagnetic
Let it be H2- ,H2+ or He2+ ; there’s an unpaired electron i.e, they are paramagnetic.
How many electrons does He2 have?
Solution : `He^(2+)` ion has no electrons. It is also called alpha `(alpha)` particle.
Why He2 does not exist according to VBT?
Answer. Each helium atom has two electrons in 1s-orbital and therefore, there are four electrons in He2 molecule. These electrons will be accommodated in si1ls and s*1s MOs as shown below. The zero bond order value indicates that there is no net bonding and He2 molecule should not be formed.
Is He2 paramagnetic?
Let it be H2- ,H2+ or He2+ ; there’s an unpaired electron i.e, they are paramagnetic.
What is the electronic configuration of sodium?
[Ne] 3s¹Sodium / Electron configuration
What is the electron configuration for argon?
[Ne] 3s² 3p⁶Argon / Electron configuration