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.
In general, within one row (period) the elements are metals on the left, and non-metals on the right. The rows of the table are called periods; the columns are called groups. Six groups (columns) have names as well as numbers: for example, group 17 elements are the halogens; and group 18, the noble gases. The periodic table can be used to derive relationships between the properties of the elements, and predict the properties of new elements yet to be discovered or synthesized.