<human>:  What is the atomic structure of water?
<bot>: The atomic structure of water is composed of two hydrogen atoms covalently bonded to one oxygen atom. The molecular formula of water is H2O, indicating that there are two atoms of hydrogen and one atom of oxygen bonded together. The covalent bond between the hydrogen and oxygen atoms is created by shared pairs of electrons between the two atoms. The two hydrogen atoms are oriented at an angle of approximately 104.5 degrees from the central oxygen atom. This creates a V-shaped molecule, with the oxygen atom at the vertex.