In other words, 68% of the norm group has a score within one standard deviation of the average (100). Also, 95% of the norm group has an IQ score within two standard deviations of the average. So, 95% of the norm group has a score between 70 (100 â 30) and 130 (100 + 30). This means scores of over 130 only occur in 2,5% of cases. For example, the Netherlands has 16 million inhabitants.
Is the molecule the basic unit for all elements? No, the atom is the basic unit for elements. An element consists of one type of atom; iron consists of iron atoms, sulfur consists of sulfur atoms, and so on. A Molecule is a â¦group of atoms of one or more types; carbon dioxide (CO2) is a molecule consisting of one carbon atom and two oxygen atoms, water (H2O) consists of two hydrogen atoms and one oxygen atom.
The identity of an element is determined by the total number of protons present in the nucleus of an atom contained in that particular element. An atom is the smallest fundamental unit of an element. Continue Reading.