What is the size of water molecule?

Coincidentally, this diameter is similar to the length of a hydrogen bond. The water molecule (bond length 0.96 Å) is smaller than ammonia (bond length 1.01 Å) or methane. (bond length 1.09 Å), with only H2 (bond length 0.74 Å) and HF (bond length 0.92 Å) being smaller molecules. read more

A water molecule measure approximately 2.75 angstroms, making it one of the smallest of all molecules. One meter is 10 billion angstroms. The water molecule is shaped like a V, with two atoms of hydrogen extending at an angle of around 104 degrees from an atom of oxygen. read more