Itâs a good idea to start thinking in these terms because itâs fundamental to making an entire painting read right with depth recession. Here is the definition for hue, value and chromatic intensity. 1  HUE: In painting color theory, a hue refers to a pure color â one without white or black pigment added to it. 2  Color and hue in painting mean the same thing to most artists. 3  The primary hues are red, yellow and blue.
In chemistry and atomic physics, the main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon as arranged in the periodic table of the elements.
Group I Elements. The elements in this group have one electron in their outer electronic shell. Thus, each element in this group has a tendency to lose a single electron, to form a singly charged positive ion, which has the stable electronic configuration of its neighbouring Nobel Gas element in the periodic table. The elements in the group are chemically reactive.