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Atoms bond to get a full outer shell of electrons.

For example, a hydrogen atom needs to gain 1 electron to achieve a full outer shell of 2. So it will bond with another hydrogen atoms and a pair of electrons is shared between them.

Helium, however already has a full outer shell and so is most stable without bonds.

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15y ago

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Why can't He2 exist?

Helium exists in the form of He and not He2 because He has already stable,does not take part in a chemical reaction.But when one atom combines with other atom in a chemical reaction to form bond to complete its outermost shell and attain stabilty while He does not combine with other atom to form bond.This is the reason for helium does not exist in the form He2 or molecule form


Is HE2 a van der waals?

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What is an example of an atom that only exists in its molecular form?

An example of an atom that only exists in its molecular form would be oxygen. It is most commonly found as an O2 molecule.


What is helium plus helium?

When two helium atoms combine, they form a molecule of helium gas (He2), which is also known as a dihelium molecule. This molecule is quite rare and unstable under normal conditions, as helium typically exists as a monoatomic gas.


How do the LCAO model explain the fact that He have a bond energy og 1e-3 and average bond length of 50 angstrom?

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What is the bond order for He2?

He2 does not exist. MO theory predicts a bond order of zero.


What diatomic molecules are joining by a double covalent bond o2 cl2 n2 he2?

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What is the significance of the he2 molecular orbital diagram in understanding the bonding and electronic structure of helium dimer molecules?

The he2 molecular orbital diagram is important for understanding how helium dimer molecules bond and their electronic structure. It shows the arrangement of electrons in the molecule's orbitals, which helps explain how the two helium atoms interact and form a stable molecule. This diagram provides insights into the bonding and energy levels of the electrons in the helium dimer, shedding light on its overall stability and properties.


Does helium exist as he2?

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How He (helium-3) contains two protons and one neutron in the nucleus. If neutral how many electrons orbit a He atom Is He an element atom ion and-or molecule How do you know?

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An alpha particle is a form of ionizing radiation which consists of?

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