Nominal Ordinal Interval Ratio Nominal The lowest measurement level you can use, from a statistical point of view, is a nominal scale. A nominal scale, as the name implies, is simply some placing of data into categories, without any order or structure.ominal Ordinal Interval Ratio Nominal The lowest measurement level you can use, from a statistical point of view, is a nominal scale. A nominal scale, as the name implies, is simply some placing of data into categories, without any order or structure.
In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond. See Fig. 3-7.
In ionic bonds, one atom donates its valence electrons to another atom in the formation of the bond. Covalent bonds form when atoms are able to share valence electrons. However, if the attraction for electrons is greater in one atom than the other, the electrons tend to orbit the stronger atom. As a result, the molecule tends to have a positive end and a negative end and the bond is a polar covalent bond. Water forms polar molecules. Metal atoms join together through metallic bonds.