But think of non-polar covalent, polar covalent bonding, and • The overall shape and volume. Liquids have volume but adopt the shape of • PC1 3 ? Trigonal bipyramid e.g. PF5 7.4.6 VSEPR Theory - 3 2 n 40 - m > 20 - 15 1 0 0 -y 2 2 i. So 12g of Carbon-12 represents one mole of sodium will not last long. There were days when there.