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.
A period of elements in the periodic table all lie in the same row.] Groups [Groups: The groups of elements in the periodic table are the elements which have the same number of electrons in their outer shells and so have similar chemical properties. A group of elements all lie in same column in the periodic table.] . Elements with similar chemical properties are in the same group of elements. An example of a group in the periodic table is the alkali metal [alkali metals: The alkali metals are the elements in Group 1 of the periodic table. They have one electron in the outer shell.] group. This video clip shows some of the reactions that occur with this group.