Hydrogen is less dense than oxygen. The electron density of every atom depends on the quantity of electrons present, despite the fact that pictures of the electron densities of each atom were not displayed.
Since hydrogen only has one electron and oxygen has eight, this makes sense. If the relative electron densities are used to determine an atom's density, then oxygen with eight electrons is denser than hydrogen with one electron.
<h3>Why do hydrogen bonds in water seem stronger?</h3>
Due to the higher electron density on oxygen in the water molecule that contributes the hydrogen atom to the HB, the hydrogen bond is more likely to form. The hydrogen-accepting water molecule has a lower electron density on hydrogen atoms, which is advantageous for additional hydrogen atom donations[16].
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