A Sticky Molecule
Water is made up of two elements: Hydrogen
H2O: meaning 2 hydrogen atoms are bonded to
1 oxygen atom
Atoms in a water molecule bond to each other
by sharing electrons- called a covalent bond
The H and O atoms bond by sharing between
them Hydrogen’s lone electron (H has only 1
electron) and one electron from the Oxygen
When the 2 hydrogen atoms share their
electron with the oxygen atom its looks like a
mouse head, with the Hydrogen atoms as the
ears and the Oxygen atom as the face.
The two Hydrogen atoms that are bonded to
the Oxygen atom have a (+) charge, while the
other end of the O atom is negative.
Since (+) and (–) attract, water molecules
“stick” together like a magnet and a nail.
This is called a polar covalent bond. (a
molecule with a positive & negative end)
This hydrogen bond gives water its unique
properties, as you will see soon…