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science/chemistry

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Dr Bob
Although helium atoms do not combine to form He2 molecules. is it true to say that He atoms are weakly attracted to one another from London dispersion forces (induced dipole forces) or is there another force at play?
It cant be Hydrogen bonding(there is no hydrogen here)
it cant be dipole induced dipole forces or ion-dipole forces or even dipole-dipole forces can it ??
Can you clarify for me please
Thanks
Andy

  • science/chemistry -

    Actually, He does form diatomic bonds, and He2 forms in the milliKelvin range. The very weak Van der Waals forces are responsible. At normal temperatures, these forces are so small as to be responsible for the very weak attraction seen. No hydrogen, nor dipole forces are present.

  • science/chemistry -

    thanks andy

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