density of ice is lower than that of liquid water

Structure of Water Molecule In water molecule, the oxygen is sp3 hybridized and hence has 4 sp3 hybridized orbitals. Two of these sp3 orbitals are half filled and hence overlap with 1s orbital of hydrogen to form two sp3 -s , O-H , σ bond while the other two contain a lone pair of electrons each. The geometry of water molecule should be tetrahedral and the bond angle ∠HOH … [Read more...] about Water