explain formation of HF molecule on basis of so ovrlaping
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In the formation of HF molecule ,only 2p electrons of fluorine atom would combine effectively with the solitary electron of hydrogen atom. ... The symmetry occurs because the energies of H(1s) and F(2pz) atomic orbitals are not the same. Molecular orbital diagram for HF molecule is given as.
HF, also known as hydrofluoric acid, is a very polar molecule. ... So do: This value means that Fluorine in the molecule pulls on hydrogens electrons way more than hydrogen pulls on Fluorine's electrons. Meaning the molecule is considered polar.
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=> HF molecule is formed by the s-p overlap of orbitals. On Pauling scale, the electronegativity of H is 2.1 and that of F is 4. Thus fluorine is more electronegative than H, the electronic cloud in this bond is displaced more towards fluorine.